Alpha-Cedrene

Also known as: (-)-Cedrene, 1H-​3a,​7-​Methanoazulene, 2,​3,​4,​7,​8,​8a-​hexahydro-​3,​6,​8,​8-​tetramethyl-​, (3R,​3aS,​7S,​8aS)​-, 1H-3a,7-Methanoazulene, 2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-, [3R-(3α,3aβ,7β,8aα)]-, Cedr-8-ene, α-Cedrene (+10 more)

INCI: ALPHA-CEDRENE

Alpha-Cedrene (CAS 469-61-4) is a cosmetic cosmetic ingredient functioning as Perfuming — a sesquiterpene naturally occurring in cedarwood oils. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.

View industrial chemical safety profile for CAS 469-61-4 →

Auto-generated CPSR Part A draft with source citations
Function
Perfuming — a sesquiterpene naturally occurring in cedarwood oils
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C15H24
MW
204.35 g/mol
PubChem CID
6431015
IUPAC Name
(1S,2R,5S,7S)-2,6,6,8-tetramethyltricyclo[5.3.1.01,5]undec-8-ene
InChIKey
IRAQOCYXUMOFCW-OSFYFWSMSA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Permitted — GRAS for fragrance use; RIFM-assessed

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Alpha-Cedrene.

Calculate MoS for your specific formulation with the MoS Calculator.

HRIPT Human Patch Test Studies

1 human repeat insult patch test aggregated from dermatological literature.

Test Type N Sensitized Dose µg/cm² NESIL µg/cm² Potency
HMT - 0 3240 - -

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Safety (1)
Endocrine Disruptors
Potential endocrine disrupting compound
Source: NORMAN Suspect List Exchange

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Flavouring and nutrient Fragrance
Regulatory List Membership (2)
IFRA Fragrance Transparency List Consumer Product Chemical

Expert Verdict

Expert safety assessment and concern-level summary for Alpha-Cedrene.

Regulatory Flags

potential-allergen fragrance-component ifra_fragrance

Known Synonyms

(-)-Cedrene 1H-​3a,​7-​Methanoazulene, 2,​3,​4,​7,​8,​8a-​hexahydro-​3,​6,​8,​8-​tetramethyl-​, (3R,​3aS,​7S,​8aS)​- 1H-3a,7-Methanoazulene, 2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-, [3R-(3α,3aβ,7β,8aα)]- Cedr-8-ene α-Cedrene Levo-α-cedrene [3R-(3α,3aβ,7β,8αa)]-2,3,4,7,8,8a-Hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulene [3R-(3α,3aβ,7β,8aα)]-2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulene [3R-(3α,3aβ,7β,8aα)]-2,3,4,7,8,8a-Hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulen [3R-(3α,3aβ,7β,8aα)]-2,3,4,7,8,8a-hexahidro-3,6,8,8-tetrametil-1H-3a,7-metanoazuleno 3-05-00-01095 BRN 3196861 EINECS 207-418-4 Levo-alpha-cedrene Laevo-alpha-cedrene

Chemical Function

Fragrance Flavouring and nutrient

Regulatory Lists

IFRA Transparency Europe Cleaning products and household care - air freshener; Europe Europe consumer_product

Australian Status

AICIS status: listed

Frequently Asked Questions

Is Alpha-Cedrene safe in cosmetics?

Alpha-Cedrene has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.

Is Alpha-Cedrene allowed in the EU?

Alpha-Cedrene EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Alpha-Cedrene do in cosmetics?

Alpha-Cedrene functions as: Perfuming — a sesquiterpene naturally occurring in cedarwood oils. It is classified as a cosmetic ingredient in our database. CAS number: 469-61-4.

Is Alpha-Cedrene used outside cosmetics?

Alpha-Cedrene also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Alpha-Cedrene have different safety status in cosmetics vs industrial chemicals?

Alpha-Cedrene is classified GHS Danger (H226, H304, H400, H410) in the chemicals database but is allowed in EU cosmetics.

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