Alpha-terpinene is one of three isomeric monoterpenes differing in the positions of their two double bonds (beta- and gamma-terpinene being the others).
How much products actually contain
No product states its amount yet.
Of the products containing it, 4 list it before the 1% line and 17 after it (usually 1% or less).
Products using this ingredient
12 of 21 confirmed · likeliest to carry enough first · See all 21
Dr. Bronner'sDr. Bronner's Eucalyptus - Pure-Castile Magic Soap
Dr. Bronner'sDr. Bronner's Eucalyptus - Pure-Castile Magic Soap Refill
OUAIOUAI Deodorant Cape Town
VegamourVegamour GRO AGELESS Anti-Gray Hair Serum
VerbVerb Amber + Jasmine Hair and Body Fragrance Mist
VerbVerb Black Currant & Floral Hair and Body Fragrance Mist
Paul MitchellPaul Mitchell HydroCream Whip Mousse
CurlsmithCurlsmith Curlshield Cream™
Paul MitchellPaul Mitchell Tea Tree Styling Wax
Paul MitchellPaul Mitchell Tea Tree Special Detox Kombucha Rinse
CurlsmithCurlsmith Frizz Rescue Curl Retainer
Elizabeth ArdenElizabeth Arden Green Tea Strawberry Basil Honey Drops Body Cream
Definition
Alpha-terpinene is one of three isomeric monoterpenes differing in the positions of their two double bonds (beta- and gamma-terpinene being the others). In alpha-terpinene the double bonds are at the 1- and 3-positions of the p-menthane skeleton. It has a role as a volatile oil component and a plant metabolite. It is a monoterpene and a cyclohexadiene.
Source: PubChem
US FDA substance register · UNII I24X278AP1 · registered name .ALPHA.-TERPINENE · single chemical substance
Alpha-Terpinene is the organic compound that conforms to the formula:
Cosmetic roles
Safety & regulatory references
- Banned
- South Korea
- Restricted
- United Kingdom
Source: MFDS (Korea) cosmetic regulatory information · EU Cosmetics Regulation · UK cosmetics regulations (OPSS)
European Union
- Other : The presence of the substance shall be indicated in the list of ingredients referred to in Article 19(1), point (g), when its concentration exceeds: - 0,001 % in leave-on products - 0,01 % in rinse-off products. The peroxide value for each substance shall be less than 20 mmoles/L(15)
- Wording of conditions of use and warnings : (15 ) This limit applies to the substance and not to the finished cosmetic product.’
Source: MFDS (Korea) cosmetic regulatory information
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
EU Cosmetics Regulation, Annex III (restricted substances), entry 131
Restriction III/131
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name α－テルピネン: 本品は、次の化学式で表される有機化合物である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 99-86-5
- EC No.EU chemical inventory number
- 202-795-1
- DTXSIDUS EPA chemical ID
- DTXSID9041237
- DTXCIDUS EPA compound ID
- DTXCID7021237
- IUPAC
- 1-Methyl-4-(propan-2-yl)cyclohexa-1,3-diene
- Molecular formula
- C10H16
- Molecular weight
- 136.238 g/mol
Measured properties
- Appearance
- liquid
- Melting/freezing point
- &, lt, 25 ℃
- Initial boiling point and range
- 175 ℃
- Upper/lower flammability or explosive limits
- 6.8 / 0.8 %
- Vapour pressure
- 0.8 ㎜Hg (at 25℃)
- Vapour density
- 4.7
- Relative density
- 0.834 (at 20℃)
- n-Octanol/water partition coefficient (Kow)
- 4.25
- Molecular weight
- 136.26
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: KOSHA safety data sheets (Korea)
What products actually use it for
What the 9 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Fragrance6
- Flavouring and nutrient2
- Intermediate1
Source: US EPA CompTox dashboard
Related literature
- Scientific Opinion on the safety and efficacy of aliphatic and aromatic hydrocarbons (chemical group 31) when used as flavourings for all animal species. · 2015
- Lemon Oil Anti-Microbial And Anti Comedogenic Effects In Skin Care Products · 2024
- Conjugated dienes as prohaptens in contact allergy: in vivo and in vitro studies of structure-activity relationships, sensitizing capacity, and metabolic activation. · 2006
- Repellent activities of essential oils and monoterpenes against Culex pipiens pallens. · 2002
Linked databases 21
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- EU CosIng ingredient list 2
- EU Cosmetics Regulation
- EU restricted substances (Annex III)
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic regulatory information 2 3
- NIST Chemistry WebBook
- PubChem
- Tlooto literature search 2 3 4
- UK cosmetics regulations (OPSS)
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata