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Annex III Entry 343 03/10/2023

Terpineol

2-(4-methylcyclohex- 3-en-1-yl)propan- 2-ol; p-Menth-1-en- 8-ol (alpha- Terpineol); 1-methyl- 4-(1-methylvinyl) cyclohexan-1-ol (beta-Terpineol); 1-methyl- 4-(1-methylethylidene)cyclohexan-1-ol (gamma-Terpineol)

Terpineol is listed in Annex III and may only be used under the conditions shown in this record.

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Restricted substance— Annex III, EU Regulation 1223/2009
Entry: 343

Chemical identity and properties

PubChem 2D chemical structure for CAS 138-87-4
CAS 138-87-4PubChem CID 8748

Beta-Terpineol

Beta-terpineol is a member of the class of terpineols that is cyclohexanol carrying additional methyl and propenyl substituents at positions 1 and 4 respectively. It has a role as a volatile oil component, a fragrance and a plant metabolite. It is a terpineol and a tertiary alcohol. — ChEBI

IUPAC name
1-methyl-4-prop-1-en-2-ylcyclohexan-1-ol
Molecular formula
C10H18O
Molecular weight
154.25 g/mol
Exact mass
154.135765193 Da
XLogP3
2.5
Topological polar surface area
20.2 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

p-Menth-8-en-1-ol1-methyl-4-(prop-1-en-2-yl)cyclohexan-1-olCyclohexanol, 1-methyl-4-(1-methylethenyl)-1-Methyl-4-(1-methylethenyl)cyclohexanol1-Methyl-4-isopropenylcyclohexan-1-ol4-Isopropenyl-1-methyl-1-cyclohexanolFEMA No. 3564beta-Terpinol
16 more reported names
XS86XKC2VTCHEBI:132899RefChem:5679811-methyl-4-(1-methylethenyl)cyclohexanal205-342-6trans-beta-Terpineolcis-beta-Terpineol7299-40-3trans-|A-Terpineol(E)-beta-Terpineolcis-.beta.-Terpineoltrans-.beta.-terpineol4-Isopropenyl-1-methylcyclohexanol1-Methyl-4-(1-methylvinyl)cyclohexan-1-ol7299-41-4cis-|A-Terpineol
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 586-81-2
CAS 586-81-2PubChem CID 11467

Gamma-Terpineol

Gamma-Terpineol is a p-menthane monoterpenoid. — ChEBI

IUPAC name
1-methyl-4-propan-2-ylidenecyclohexan-1-ol
Molecular formula
C10H18O
Molecular weight
154.25 g/mol
Exact mass
154.135765193 Da
XLogP3
2.1
Topological polar surface area
20.2 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

1-methyl-4-(propan-2-ylidene)cyclohexan-1-olCyclohexanol, 1-methyl-4-(1-methylethylidene)-5PH9U7XEWSp-menth-4(8)-en-1-olRefChem:142358209-584-3.gamma.-Terpineol1-Methyl-4-(1-methylethylidene)cyclohexan-1-ol
13 more reported names
EINECS 209-584-3UNII-5PH9U7XEWSg-Terpineolgamma-terpinolene4-isopropylidene-1-methyl-cyclohexanolCHEBI:811514-Isopropylidene-1-methylcyclohexanolEBC-617770NS-011961-methyl-4-(propan-2-ylidene)cyclohexanolDB-3605661-Methyl-4-(1-methylethylidene)cyclohexanol #1-Methyl-4-(1-methylethylidene)cyclohexanol, 9CI
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 98-55-5
CAS 98-55-5PubChem CID 17100

Alpha-Terpineol

Alpha-terpineol is a terpineol that is propan-2-ol substituted by a 4-methylcyclohex-3-en-1-yl group at position 2. It has a role as a plant metabolite. — ChEBI

IUPAC name
2-(4-methylcyclohex-3-en-1-yl)propan-2-ol
Molecular formula
C10H18O
Molecular weight
154.25 g/mol
Exact mass
154.135765193 Da
XLogP3
1.8
Topological polar surface area
20.2 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

p-Menth-1-en-8-ol1-p-Menthen-8-olTerpineol 3501-Menthene-8-olalpha-TerpinenolTerpenolTerpineol schlechthinCARVOMENTHENOL
16 more reported names
alpha,alpha,4-Trimethyl-3-cyclohexene-1-methanol1-Methyl-4-isopropyl-1-cyclohexen-8-ol2-(4-Methyl-3-cyclohexenyl)-2-propanolFEMA No. 3045PC 5931-Methyl-4-isopropyl-1-cyclohexene-8-ol3-Cyclohexene-1-methanol, alpha,alpha,4-trimethyl-CHEBI:22469NSC-21449NSC-403665MIL-350PC-593alphaTERPINEOLRefChem:55313-cyclohexene-1-methanol, alpha, alpha, 4-trimethyl-202-680-6
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Record details

Other restrictions

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.

INCI glossary name

Terpineol

Chemical name

2-(4-methylcyclohex- 3-en-1-yl)propan- 2-ol; p-Menth-1-en- 8-ol (alpha- Terpineol); 1-methyl- 4-(1-methylvinyl) cyclohexan-1-ol (beta-Terpineol); 1-methyl- 4-(1-methylethylidene)cyclohexan-1-ol (gamma-Terpineol)

Regulatory information

Regulation

(EU) 2023/1545

See every entry this act set

Identified ingredients

Key data

CAS
8000-41-7/ 98-55-5/ 138-87-4/ 586-81-2
EC
232-268-1/ 202-680-6/ 205-342-6/ 209-584-3
Annex
III
Entry number
343

Inventory links for Terpineol

Inventory Identified ingredient
Ref 80711

TERPINEOL

CAS: 8000-41-7
EC: 232-268-1

Direct matches are limited for this record, so nearby entries from Annex III are shown as well.

Annex III 342
Nearby record in the same annex

Sclareol

CAS: 515-03-7
EC: 208-194-0
Annex III 341
Nearby record in the same annex

Santalol

CAS: 11031-45-1/ 115-71-9/ 77-42-9
EC: 234-262-4/ 204-102-8/ 201-027-2
Annex III 340
Nearby record in the same annex

Salicylaldehyde

CAS: 90-02-8
EC: 201-961-0
Annex III 346
Nearby record in the same annex

Vanillin

CAS: 121-33-5
EC: 204-465-2
Annex III 338
Nearby record in the same annex

Menthol

CAS: 89-78-1 / 1490-04-6 / 2216-51-5 / 15356-60-2
EC: 201-939-0/ 216-074-4/ 218-690-9/ 239-387-8
Annex III 337
Nearby record in the same annex

Linalyl Acetate

CAS: 115-95-7
EC: 204-116-4

What Annex III means for Terpineol

Terpineol is a restricted substance under Annex III of EU Cosmetics Regulation 1223/2009. Its use in cosmetics is only permitted under the specific conditions set out in the entry above, including applicable concentration limits, product type restrictions and required warning statements.

When including this substance in a formulation, all conditions — maximum concentration, product scope and warning labels — must be met simultaneously. Compliance with one condition does not override the others.

This record is linked to 2 CosIng inventory ingredients for name and identifier cross-reference. The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Document conditions of use in the Product Information File (PIF).

Frequently asked questions

Terpineol is listed in Annex III of EU Regulation 1223/2009 as a restricted substance. It may only be used under the conditions specified in the entry, including any maximum concentration, product type limitation and required warning statements shown above.

CAS 8000-41-7/ 98-55-5/ 138-87-4/ 586-81-2 is the unique numerical identifier assigned to Terpineol by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex III record Terpineol

This page summarizes one Annex III record for Terpineol from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex III conditions for Terpineol, but confirm any final regulatory decision against the current official annex wording and source files.

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