alpha-terpineol

Material Search

2-(4-methyl-1-cyclohex-3-enyl)propan-2-ol

Identifiers

CAS (Single)	98-55-5
FEMA	3045
EINECS	202-680-6
Synonyms	3- cyclohexene-1-methanol, a,a,4-trimethyl- lindenol (IFF) p- menth-1-en-8-ol para- menth-1-en-8-ol 1-p- menthen-8-ol 1-para- menthen-8-ol 2-(4- methyl-1-cyclohex-3-enyl)propan-2-ol 2-(4- methyl-3-cyclohexen-1-yl)-2-propanol 2-(4- methyl-3-cyclohexenyl)-2-propanol 1- methyl-4-isopropyl-1-cyclohexen-8-ol 1- methyl-4-isopropyl-1-cyclohexene-8-ol 2-(4- methyl-cyclohex-3-enyl)-propan-2-ol 2-(4- methylcyclohex-3-en-1-yl)propan-2-ol 2-(4- methylcyclohex-3-enyl)propan-2-ol alpha- terpilenol .alpha.- terpineol 1-a- terpineol a- terpineol DL-alpha- terpineol alpha- terpineol (NQ) (natural) terpineol â€“alpha terpineol 318 type (terpineol N) terpineol 350 terpineol alpha terpineol alpha laevo terpineol alpha nat terpineol alpha natural terpineol alpha purified natural alpha- terpineol coeur terpineol crystals alpha- terpineol extra alpha- terpineol natural terpineol normal alpha- terpineol P and F laevo alpha- terpineol P&F FCC alpha- terpineol PFQ terpineol schlechthin alpha- terpineol super alpha- terpineol super FCC terpineol supra alpha- terpineol supra alpha- terpineol synthetic tilianol NP (PFW) tilianol super (PFW) (1)-alpha,alpha,4- trimethyl cyclohex-3-ene-1-methanol alpha,alpha,4- trimethyl-3-cyclohexene-1-methanol (1)-alpha,alpha,4- trimethylcyclohex-3-ene-1-methanol
JECFA Food Flavoring	366
JECFA Food Additive	N/A
DG SANTE Food Flavourings	02.014 alpha-terpineol
DG SANTE Food Contact Materials	N/A
FDA UNII	21334LVV8W
CoE Number	62
XlogP3-AA	N/A
Molecular Weight	154.25266
Molecular Formula	C10 H18 O

Properties

Food Chemicals Codex Listed	Yes
Appearance	colorless viscous liquid to solid (est)
Assay	96.00 to 100.00 sum of isomers
Specific Gravity	0.93000 to 0.93600 @ 25.00 °C.
Lbs/Gal (est)	7.739 to 7.788
Refractive Index	1.47400 to 1.48600 @ 20.00 Â°C.
Melting Point	40.00 to 41.00 Â°C. @ 760.00 mm Hg
Boiling Point	214.00 to 218.00 Â°C. @ 760.00 mm Hg
Flash Point	191.00 Â°F. TCC ( 88.33 Â°C. )
Acid Value	N/A
Vapor Pressure	0.028000 mmHg @ 25.00 Â°C. (est)
Vapor Density	5.3 ( Air = 1 )
logP (o/w)	2.67
Soluble In	alcohol kerosene paraffin oil water, 710 mg/L @ 25 °C (exp) water alcoholic lotion deo stick detergent perborate fabric softener hair spray hard surface cleaner liquid detergent non-discoloring in most media shampoo soap
Occurrence	achillea tenuifolia lam. flower oil iran @ 2.00% agathosma crenulata oil @ 0.43% ajowan seed oil turkey @ 0.19% allamanda cathartica linn. flower oil brazil @ 0.10% allspice plant alpinia galanga oil @ 0.20% amomum testaceum ridl. fruit oil malaysia @ 3.00% angelica root oil @ 0.40% anise oil anise seed anise seed oil anise seed oil star china @ 0.28% anise star anise fruit apple fruit apricot fruit apricot oil armoise oil morocco @ 5.3% artemisia deserti krasch. oil iran @ 2.00% artemisia gypsacea krasch. oil iran @ 0.70% artemisia santolina schrenk oil iran @ 2.10% artemisia variabilis flower oil italy @ 0.20% ayou wood oil @ 0.10% basil flower oil sweet @ 0.72% basil leaf oil basil leaf oil sweet (ocimum basilicum) @ 0.90% basil oil basil oil CO2 sweet @ 0.93% basil oil sweet @ 0.16% basil oil sweet poland @ 0.91% basil oil var. glabratum turkey @ 0.63% basil plant basil shoot oil basswood flower bay laurel fruit oil bay laurel leaf bay laurel leaf oil bay leaf oil @ 0.14-0.52% bay leaf oil anise @ 0.1% bay leaf oil clove @ 0.5% bergamot mint oil @ 0.6-7.3% bergamot oil @ 0.030-0.126% bergamot oil @ 0.3% bergamot plant wild betel leaf oil @ 2.30% bilberry fruit juice blood orange oil (citrus sinensis l. var. sanguinello) italy @ 0.048% blood orange oil (citrus sinensis l. var. tarocco) italy @ 0.047% blood orange oil italy @ 0.055% blueberry fruit bois de rose boldo leaf oil italy @ 0.25% boldus leaf oil chile @ 0.14% buchu leaf oil @ 0.28% cabbage shoot cajuput oil @ 5.5% cajuput oil vietnam @ 8.7% calamus leaf oil @ 0.31% calamus rhizome oil @ 0.14% calamus root oil @ 0.05% camel grass oil @ 1.10% cananga fruit oil @ trace% cananga leaf oil @ 0.3% caraway seed cardamom fruit cardamom fruit oil cardamom oil CO2 extract guatemala @ 5.90% cardamom seed oil cardamom seed oil @ 3.40% carnation absolute @ 0.03% carrot leaf oil @ 0.58% carrot root carrot seed oil @ 1.65% carrot seed oil spain @ 0.16-0.69% carrot weed oil @ 1.08% cascarilla bark oil @ 1.10% cassia bark cassia bark oil china @ 0.07% cassia leaf oil china @ 0.07% cassinia laevis flower oil australia @ 1.00% cassinia laevis leaf oil australia @ 0.70% cassis bud oil @ trace-0.22% cayenne fruit celery leaf oil celery leaf oil @ 0.30% celery oil celery root oil celery seed celery seed oil celery seed oil egypt @ 0.28% chamomile oil @ 0.03% champaca concrete @ 0.10% champaca concrete @ 6.04% chenopodium ambrosioides oil @ 1.9% cherry cinnamomum fragrans baillon leaf oil madagascar @ 1.00% cinnamomum fragrans baillon leaf oil madagascar @ 2.10% cinnamon bark oil ceylon @ 0.07% cinnamon ceylon cinnamon bark cinnamon ceylon cinnamon bark oil cinnamon ceylon cinnamon leaf cinnamon ceylon cinnamon leaf oil cinnamon ceylon cinnamon root bark cinnamon ceylon cinnamon stem bark cinnamon fruit oil india @ 0.3% cinnamon leaf oil ceylon @ 0.10% cinnamon oil CO2 extract @ 0.19-0.35% cistus oil @ 0.5% citronella oil ceylon @ 1.05% citronella oil china @ 0.06% citronella oil java @ 0.05% citronella oil zimbabwe @ 0.62% clary sage oil france @ 0.20-0.60% clary sage oil greece @ 15.10% clary sage oil sardinia @ 47.40% clary sage oil spain @ 5.63% clove oil coconut fruit coriander fruit coriander oil coriander seed oil coriander seed oil @ 0.40% coriander seed oil CO2 extract @ 0.23% coriander seed oil cuba @ 2.32% corn silk cornmint oil india @ 0.07% couroupita guianensis aubl. flower oil brazil @ 4.20% cranberry fruit crithmum maritimum l. oil turkey @ 0.40% croton cajucara benth. leaf oil brazil @ 0.60% croton flavens l. (welensali) leaf oil curacao @ 0.10% cubeb oil @ 0.30% cumin seed cumin seed oil cumin seed oil egypt @ 0.05% cumin seed oil turkey @ trace% curcuma amada roxb. rhizome oil india @ 0.80% currant black currant fruit curry fruit oil india @ 0.20% curry leaf oil india @ 0.60% cypress cone oil egypt @ 2.2% dialium guineense wild.fruit oil france @ 2.00% dill leaf dill oil dill weed oil reunion @ 0.20% echinophora cinerea oil iran @ 0.70% elder black elder flower oil erigeron eriocephalus punctulatus oil @ 0.50% eschweilera coriacea (a. p. dc.) mori flower oil brazil @ 3.20% eucalyptus camaldulensis dehn. leaf oil jerusalem @ 0.70% eucalyptus citriodora oil @ 0.02% eucalyptus dalrympleana maiden leaf oil ethiopia @ 12.10% eucalyptus deaneti maiden leaf oil ethiopia @ 0.80% eucalyptus delegatensis r. baker leaf oil ethiopia @ 8.30% eucalyptus globulus bud oil @ 4.66% eucalyptus globulus fruit oil @ 2.27% eucalyptus globulus maidenii f. muell oil @ 1.05% eucalyptus globulus oil @ 3.65% eucalyptus globulus oil burundia @ 5.80% eucalyptus globulus oil pakistan @ 2.90% eucalyptus globulus oil rwanda @ 0.11% eucalyptus globulus oil zambia @ 1.90% eucalyptus globulus pseudoglobulus oil @ 0.84% eucalyptus grandis w. hill ex maiden leaf oil ethiopia @ 5.40% eucalyptus nitens (deane et maiden) maiden leaf oil ethiopia @ 9.40% eucalyptus saligna smith leaf oil ethiopia @ 2.70% eucalyptus tereticornis smith leaf oil ethiopia @ 6.30% eucalyptus urophylla s.t. blake leaf oil ethiopia @ 5.60% eucalyptus viminalis labill. leaf oil ethiopia @ 1.40% featherfew leaf oil @ 0.17% fennel seed ferula cupularis stem oil @ 0.86% fig leaf fir needle oil canada @ 0.56-4.48% fleabane oil @ trace% frankincense oil somalia @ 0.10% galangal root oil @ 5.00% gardenia geranium leaf oil india @ 1.89% geranium oil bourbon @ 0.79% geranium oil rwanda @ 0.15% geranium petiole oil india @ 0.29% geranium rose-scented oil (pelargonium spp.) cuba @ 0.20% geranium stem oil india @ 2.42% ginger ginger rhizome ginger rhizome oil ginger root oil china @ 0.37% ginger root oil CO2 extract @ 2.51% glycosmis pentaphylla (cor.) seed oil india @ 4.20% grape leaf oil grapefruit oil c.p. @ 0.07% grapefruit oil c.p. @ 0.14% grapefruit oil c.p. @ 0.15% grapefruit oil c.p. italy @ 0.20% grapefruit oil c.p. russia @ 0.03% grapefruit oil c.p. russia @ 0.04% grapefruit oil c.p. russia @ 0.06% grapefruit oil c.p. russia @ 0.06% grapefruit oil california @ 0.12% grapefruit oil CO2 extract @ 0.32% guava fruit guava leaf oil cuba @ trace% guava pericarp oil helichrysum arenarium (l.) moench oil hungary @ 1.80% hinoki leaf oil @ 1.11% hinoki root oil @ 3.53% hinoki wood oil @ 0.14% ho leaf oil @ 0.53% horsemint shoot hyacinthus orientalis absolute @ 0.00-0.04% hypericum dogonbadanicum assadi oil iran @ 0.70% hyptis spicigera lam. oil mali @ 0.20-0.40% hyptis suaveolens (l.) poit. oil mali @ 0.10-0.30% hyssop flower hyssop leaf hyssop oil hyssop oil @ 0.2% jambu flower oil brazil @ 0.10% juniper berry oil @ 0.20% juniper berry oil CO2 extract @ 1.10% juniper branch oil @ 0.20% juniper needle oil @ 0.20% kachur oil @ 1.30% kewda oil @ 1.89-2.05% labdanum leaf oil @ 0.50% labdanum oil @ 0.30% laurel bark oil @ 0.3% laurel leaf oil turkey @ 3.10% laurel stem oil @ 0.5% laurel wood oil @ 1.9% lavandin oil abrialis @ 0.98% lavandin oil china @ 9.09% lavandin oil grosso @ 1.18% lavandin water (lavandula hydrida) @ 8.98% lavandula officinalis flower oil @ 2.50% lavender oil @ 1.22% lavender oil CO2 extract france @ 0.46% lavender oil france @ 4.34% lavender oil spike @ 1.00% lavender oil spike france @ 2.67% lavender oil spike spain @ 0.79% lavender spike lavender lavender spike water @ 4.95% lavender water bulgaria @ 6.06% layana oil kenya @ trace% layana oil wild zimbabwe @ 0.10-0.70% layana oil zimbabwe @ 0.4% lemon balm shoot lemon leaf oil lemon oil lemon oil california @ 0.16% lemon pericarp lemon pericarp oil lemon petiole lemon verbena oil morocco @ 2.3% lemon verbena oil turkey @ 2.00% lemongrass oil @ 0.06% lemongrass oil rwanda @ 0.60% lemongrass plant levisticum officinale flower oil @ 0.31% levisticum officinale seed oil @ trace% lime fruit lime oil CO2 extract mexico @ 27.66% lime oil distilled mexico @ 7.90% lime oil distilled peru @ 7.00% lime oil expressed florida @ 0.4% linaloe litsea cubeba oil china @ 0.36% lovage root lovage root oil @ 4.12% mace mace oil @ 1.30% mace oil CO2 extract @ 0.10% magnolia mandarin fruit mandarin oil @ 0.12% mandarin oil @ 3.81% mandarin oil avana @ 0.37% mandarin oil avana @ 0.38% mandarin oil italy @ 0.12% mandarin oil italy @ 0.14% mandarin oil japan @ 0.10% mandarin oil uruguay @ 0.06-0.08% mangrove bark red oil cuba @ 0.40% manuka var. eximium oil australia @ 3.00% manuka var. rotundifolium oil australia @ 4.70% manuka var. scoparium oil new zealand @ 0.09% marjoram leaf oil marjoram oil marjoram oil @ 4.04% marjoram oil spain @ 3.00% marjoram oil sweet cuba @ 3.19% marjoram oil sweet cyprus @ 7.30-14.20% marjoram oil sweet egypt @ 26.85% marjoram oil sweet iran @ 6.50% marjoram oil sweet morocco @ 3.26% marjoram oil sweet turkey @ 0.56-1.35% mastic fruit oil @ 13.62% mastic leaf oil @ 13.02% mastic oil @ 0.15% mayur pankh fruit oil himalaya @ 0.40% melissa oil @ 1.44% melon mentha longifolia (l.) huds. oil jordan @ 1.10% microstrobos fitzgeraldii leaf oil australia @ 0.20% microstrobos niphophilus leaf oil australia @ 0.40% mikan peel oil @ 0.21% mikania cordata (burm. f.) b.l. robinson var. cordata leaf oil france @ 0.50% mugwort plant myristica fragrans fruit oil @ 0.60% myrrhinium atropurpureum schott leaf oil brazil @ 4.80% myrtle lemon scented leaf oil australia @ 0.30% myrtle oil @ 5.25% narcissus absolute @ 0.33% narcissus absolute @ 1.95% narcissus absolute @ 2.23% nepeta denudata benth. oil iran @ 1.40% nepeta racemosa lam. oil iran @ 2.70% neroli bigarde oil france @ 4.75% neroli oil CO2 extract @ 1.13% niaouli oil egypt @ 13.20% nutmeg extract CO2 west indian @ 0.20% nutmeg flower oil @ 5.88% nutmeg leaf oil @ 0.35-1.74% nutmeg oil nutmeg oil hydrodistilled india @ 0.6% nutmeg oil india @ 0.73% nutmeg seed nutmeg seed oil ocimum gratissimum l. oil brazil @ 0.31% orange bigarade oil @ 3.75% orange fruit orange fruit juice orange oil c.p. brazil @ 0.08-0.09% orange oil terpeneless @ 3.40% orange peel oil bitter brazil @ 0.07% orange peel oil bitter china @ 0.24% orange peel oil bitter italy @ 0.26% orange peel oil sweet c.p. blond italy @ 0.047% orange peel oil sweet c.p. blond italy @ 0.060% orange peel oil sweet c.p. blond italy @ 0.066% orange peel oil sweet c.p. blond italy @ 0.066% orange peel oil sweet c.p. blond italy @ 0.067% orange peel oil sweet c.p. florida @ 0.03% orange peel oil sweet c.p. valencia @ 0.03% orangeflower absolute morocco @ 1.5-3.7% orangeflower water absolute @ 13.0-22.0% oregano plant oregano shoot oregano shoot oil origanum oil greece @ 0.10% osmanthus absolute @ 0.07% papaya fruit parsley leaf parsley leaf oil egypt @ 0.13% parsley seed parsley seed oil @ 0.07% peach fruit pennyroyal oil cuba @ 0.29% pepper bell pepper fruit pepper black pepper fruit pepper black pepper fruit oil pepper oil black india @ 0.20% peppermint oil peppermint oil america @ 0.15% peppermint oil mongolia @ 0.06% petitgrain bergamot oil @ 4.21% petitgrain bigarade oil @ 3.70% petitgrain grapefruit oil @ 0.30% petitgrain lemon oil @ 1.09% petitgrain lime oil @ 0.20% petitgrain mandarin oil @ 1.28% petitgrain oil @ 5.20% petitgrain sweet oil @ 1.09% phoebe oil brazil @ 0.07% pimento berry oil @ 0.7% pimento berry oil CO2 extract jamaica @ 0.4% pine needle oil dwarf @ 0.10% pine needle oil scotch siberia @ 2.0-2.4% pineapple fruit pinus laricio poiret branch oil italy @ 0.40% pinus sylvestris l. needle oil estonia @ 0.10% pinus sylvestris l. needle oil yugoslavia @ 0.40% plectranthus glandulosus hook f. leaf oil cameroon @ 0.30% plum fruit plumcot fruit pteronia oil @ 1.30% raisin raspberry red raspberry fruit ravintsara leaf oil @ 0.38%% robinia pseudacacia rose oil otto bulgaria @ 0.94% roselle calyx rosemary leaf rosemary leaf oil rosemary oil rosemary oil china @ 1.35% rosemary oil CO2 extract @ 1.95% rosemary oil corsica @ 1.00% rosemary oil egypt @ 4.92% rosemary oil france @ 0.00-0.09% rosemary oil morocco @ 0.00-2.46% rosemary oil spain @ 3.8% rosemary oil turkey @ 0.83% rosemary plant rosemary shoot rosemary shoot oil sage leaf sage leaf oil sage oil sage oil albania @ 0.10% sage oil dalmatian @ 0.10% sage oil dalmatian @ 0.10% sage oil dalmatian @ 0.11% sage oil england @ 0.30% sage oil germany @ 0.29% sage oil hydrodistillation france @ 0.70% sage oil reunion @ 0.60% sage oil sardinia @ 0.10% sage oil spain @ 0.1-1.9% sage oil spain @ 0.4% sage oil spain @ 0.50% salvia lavandulifolia vahl. leaf oil @ 0.80% salvia lavandulifolia vahl. leaf oil spain @ 0.30% salvia officinalis oil reunion @ 0.24% salvia officinalis seed oil tunisia @ 0.91% salvia sclarea oil @ 5.00% salvia sclarea seed oil tunisia @ 0.20% salvia verbenaca seed oil tunisia @ 2.03% santolina oil @ 0.65% satureja viminea l. oil costa rica @ 0.10% savin oil @ 1.77% savory summer savory plant savory winter savory oil savory winter savory plant skimmia laureola oil @ 1.8% snake root oil canada @ 5.90% spearmint oil stachys recta l. oil serbia @ 1.20% star fruit oil cuba @ 0.10% strawberry wild strawberry fruit sugandha kokila berry oil @ 6.60% sunflower flower tagete oil CO2 extract @ 0.50% tamarind fruit tamarind fruit oil tamarind seed oil tangerine oil america @ 0.07% tansy flower oil canada @ 0.39% tansy oil argentina @ trace% tansy oil marocco @ 0.40% taxodium distichum (l.) richard branch oil italy @ 1.30% taxodium distichum (l.) richard leaf oil italy @ 0.90% tea leaf tea shoot tejpat oil @ 0.30% thevetia peruviana (pers.) k. schum. flower oil brazil @ 2.00% thyme oil thyme oil portuguese @ 0.1% thyme oil red CO2 extract @ 0.20% thyme oil red spain @ 0.17-0.26% thyme oil spain @ 0.04% thyme oil spain @ 0.08% thyme oil wild or creeping canada @ 2.90% thyme oil wild or creeping france @ 1.60% thyme plant tomato trachyspermum roxburghianum benth. ex. kurz. seed oil india @ 0.50% tsauri grass oil @ 0.10% turmeric rhizome turmeric rhizome oil turmeric root oil CO2 extract @ 0.96% valerian root oil @ trace-0.1% verbena oil france @ 2.10% witch hazel leaf oil @ 1.06% wormwood flower oil annus america @ 0.09% wormwood leaf oil annus america @ 0.08-0.12% wormwood oil annus france @ 0.00-0.65% wormwood oil cuba @ 4.80% wormwood oil italy @ trace% xylopia aromatica (lam.) mart. leaf oil cuba @ 0.30% yarrow leaf oil @ 1.20% yarrow oil @ 0.90% yarrow oil greece @ 0.50% yarrow oil hungary @ 0.30% ylang ylang oil @ 0.14% yuzu leaf oil @ 0.05-0.06% yuzu peel oil c.p. @ 0.10-0.25% yuzu peel oil CO2 extract @ 0.16-0.84%

Organoleptic

Organoleptic Notes	1. Odor Type: terpenic Odor Strength:medium Substantivity:20 hour(s) at 100.00 % pine terpenic lilac citrus woody floral Odor Description:at 100.00 %. pine terpene lilac citrus woody floral pine woody resinous cooling lemon lime citrus floral Odor Description:at 1.00 % in ethyl alcohol. Pine-like, woody and resinous with a slight cooling lemon and lime citrus nuance, and a floral dry outMosciano, Gerard P&F 22, No. 4, 75, (1997)
Odor	terpenic pine, terpenic, lilac, citrus, woody, floral, resinous, cooling, lemon, lime
Flavor	citrus citrus, woody, lemon, lime, soapy,

AInsights BETA

FlavScents AInsights Entry for Alpha-Terpineol (CAS: 98-55-5)

1. Identity & Chemical Information

Alpha-terpineol is a monoterpene alcohol commonly used in the flavor and fragrance industry. Its IUPAC name is 2-(4-methylcyclohex-3-en-1-yl)propan-2-ol. The CAS number for alpha-terpineol is 98-55-5. It is also identified by FEMA number 3049. The molecular formula is C10H18O, and it has a molecular weight of 154.25 g/mol. Alpha-terpineol contains a hydroxyl group, which contributes to its solubility in water and its characteristic floral and lilac-like odor. The presence of the cyclohexene ring and the methyl group influences its olfactory properties, making it a versatile component in both flavor and fragrance formulations.

Citation hooks: FlavScents; PubChem; FEMA

2. Sensory Profile

Alpha-terpineol is known for its pleasant floral aroma, often described as lilac, citrus, and pine-like. It has a moderate intensity and is used to impart a fresh, clean scent in various applications. The odor threshold of alpha-terpineol is relatively low, making it effective even at low concentrations. In flavor applications, it provides a subtle citrus and floral note, enhancing the overall profile of the product. Its role as an impact note or modifier is crucial in creating balanced sensory experiences.

Citation hooks: FlavScents; peer-reviewed sensory literature

3. Natural Occurrence & Formation

Alpha-terpineol naturally occurs in a variety of essential oils, including pine oil, petitgrain oil, and cajuput oil. It can also be found in the oils of eucalyptus and tea tree. The compound is typically formed through the hydration of terpinolene or the rearrangement of alpha-pinene. Its presence in natural sources qualifies it for use in products labeled as "natural flavor" or "natural fragrance," depending on the extraction and processing methods used.

Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs

4. Use in Flavors

In the flavor industry, alpha-terpineol is used across various categories, including citrus, floral, and herbal flavors. It serves as a functional component that enhances the freshness and complexity of flavor systems. Typical use levels in food and beverages range from 1 to 20 ppm, depending on the desired intensity and the matrix of the product. It is generally stable under normal processing conditions but may degrade under extreme heat or acidic conditions, which should be considered during formulation.

Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature

5. Use in Fragrances

Alpha-terpineol is a versatile ingredient in the fragrance industry, commonly used in floral, citrus, and woody fragrance families. It acts as a modifier or impact note, providing a fresh and clean scent profile. Typical concentration ranges in fragrance formulations vary from 0.1% to 5%, depending on the product type and desired olfactory impact. Due to its moderate volatility, alpha-terpineol contributes primarily to the middle notes of a fragrance composition.

Citation hooks: FlavScents; IFRA; fragrance chemistry texts

6. Regulatory Status (Regional Overview)

In the United States, alpha-terpineol is recognized as GRAS (Generally Recognized As Safe) by FEMA for flavor use. In the European Union, it is listed under Regulation (EC) No 1334/2008 with an assigned FL number. The United Kingdom follows similar regulations post-Brexit. In Asia, countries like Japan and China have specific guidelines for its use in flavors and fragrances, while ASEAN countries generally align with international standards. In Latin America, regulations may vary, but alpha-terpineol is generally accepted for use in both flavors and fragrances.

Citation hooks: FEMA; EFSA; national authority publications

7. Toxicology, Safety & Exposure Considerations

Alpha-terpineol is considered safe for use in food and fragrance applications when used within recommended levels. For oral exposure, it has a high margin of safety, with no adverse effects reported at typical use levels. Dermal exposure in fragrance applications is generally well-tolerated, although it may cause mild irritation in sensitive individuals. Inhalation exposure is considered low risk, but occupational safety measures should be observed in manufacturing settings. The risk profiles for food and fragrance applications are similar, with no significant differences noted.

Citation hooks: EFSA; FEMA; PubChem; toxicology literature

8. Practical Insights for Formulators

Alpha-terpineol is valued for its ability to enhance and modify both flavor and fragrance profiles. It synergizes well with other floral and citrus notes, providing a fresh and clean character. Formulators should be cautious of its potential to overpower delicate compositions if used excessively. It is often under-utilized in complex formulations where its subtlety can add depth and realism.

Citation hooks: FlavScents; industry practice

9. Confidence & Data Quality Notes

The data on alpha-terpineol is well-established, with comprehensive documentation available from authoritative sources. Industry practices are generally consistent with documented guidelines, although some regional regulatory nuances may exist. Known data gaps are minimal, and the compound's safety profile is well-supported by scientific literature.

Citation hooks: FlavScents

QA Check

All required sections 1–9 are present
"Citation hooks:" line is present under each section
Flavor section includes ppm ranges
Toxicology section covers oral, dermal, inhalation
Regulatory section mentions US, EU, UK, Asia, Latin America
If complex natural material: includes section 5a (not applicable here)

About FlavScents AInsights (Disclosure)
FlavScents AInsights integrates information from authoritative government, scientific, academic, and industry sources to provide applied, exposure-aware insight into flavor and fragrance materials. Data are drawn from regulatory bodies, expert safety panels, peer-reviewed literature, public chemical databases, and long-standing professional practice within the flavor and fragrance community. Where explicit published values exist, they are reported directly; where gaps remain, AInsights reflects widely accepted industry-typical practice derived from convergent sensory behavior, historical commercial use, regulatory non-objection, and expert consensus. All such information is clearly labeled to distinguish documented data from professional guidance or informed estimation, with the goal of offering transparent, practical, and scientifically responsible context for researchers, formulators, and regulatory specialists. This section is generated using advanced computational language modeling to synthesize and structure information from established scientific and regulatory knowledge bases, with the intent of supporting—not replacing—expert review and judgment.

Generated 2026-08-19 06:26:37 GMT (p2)

Suppliers

	Advanced Biotech ALPHA TERPINEOL SYNTHETIC • 2268 Supplier Detail
	De Monchy Aromatics Alpha-terpineol EU Natural • 800984 Supplier Detail
	Vigon International TERPINEOL ALPHA NATURAL PURIFIED • 501314 Supplier Detail
	Vigon International TERPINEOL ALPHA NATURAL • 501585 Supplier Detail
	Vigon International TERPINEOL ALPHA • 514153 Supplier Detail
	Axxence Corporation NATURAL ALPHA-TERPINEOL • 304520 Supplier Detail
	Penta Fine Ingredients NATURAL TERPINEOL • 20-07500 Supplier Detail
	Penta Fine Ingredients ALPHA TERPINEOL • 20-07800 Supplier Detail
	Penta Fine Ingredients TERPINEOL 318 TYPE • 20-07900 Supplier Detail

alpha-terpineol

Identifiers

Properties

Organoleptic

AInsights BETA

FlavScents AInsights Entry for Alpha-Terpineol (CAS: 98-55-5)

1. Identity & Chemical Information

2. Sensory Profile

3. Natural Occurrence & Formation

4. Use in Flavors

5. Use in Fragrances

6. Regulatory Status (Regional Overview)

7. Toxicology, Safety & Exposure Considerations

8. Practical Insights for Formulators

9. Confidence & Data Quality Notes

QA Check

Suppliers

Advanced Biotech

De Monchy Aromatics

Vigon International

Vigon International

Vigon International

Axxence Corporation

Penta Fine Ingredients

Penta Fine Ingredients

Penta Fine Ingredients