NOAEL Data REACH Registered Cosmetic Ingredient

Acetylcedrene

Also known as: 9-Acetyl-8-cedrene, Acetyl-alpha-cedrene, Methyl cedryl ketone, Ethanone, 1-[(3R,3aR,7R,8aS)-2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulen-5-yl]-, Ethanone, 1-​[(3R,​3aR,​7R,​8aS)​-​2,​3,​4,​7,​8,​8a-​hexahydro-​3,​6,​8,​8-​tetramethyl-​1H-​3a,​7-​methanoazulen-​5-​yl]​- (+12 more)

CAS 32388-55-9

Acetylcedrene (CAS 32388-55-9) is a chemical substance. Key regulatory status: REACH registered, 3 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS, ECHA REACH.

View cosmetic safety profile for Acetylcedrene →

SOURCE noael studies public
NOAEL studies
22
SOURCE chemical inventory jurisdictions
Regulatory lists
3
SOURCE eu clp annex vi
GHS signal
Not classified

Chemical Identity

CAS, identifiers, formula, and alternate names for the matched substance record.

SOURCE DSSTox identifiers 23 fields
Name
Acetylcedrene
CAS Number
32388-55-9
DTXSID
DTXSID4029353
Molecular Formula
C17H26O
InChI Key
YBUIAJZFOGJGLJ-SWRJLBSHSA-N
Monoisotopic Mass
246.198365
Synonyms
9-Acetyl-8-cedreneAcetyl-alpha-cedreneMethyl cedryl ketoneEthanone, 1-[(3R,3aR,7R,8aS)-2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulen-5-yl]-Ethanone, 1-​[(3R,​3aR,​7R,​8aS)​-​2,​3,​4,​7,​8,​8a-​hexahydro-​3,​6,​8,​8-​tetramethyl-​1H-​3a,​7-​methanoazulen-​5-​yl]​-Ethanone, 1-(2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulen-5-yl)-, [3R-(3α,3aβ,7β,8aα)]-1-[(3R,3aR,7R,8aS)-2,3,4,7,8,8a-Hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulen-5-yl]ethanone1H-3a,7-Methanoazulene, ethanone deriv.1-((3R,3AR,7R,8aS)-3,6,8,8-tetramethyl-2,3,4,7,8,8a-hexahydro-1H-3a,7-methanoazulen-5-yl)ethan-1-one1-[(3R,3aR,7R,8aS)-3,6,8,8-Tetramethyl-2,3,4,7,8,8a-hexahydro-1H-3a,7-methanoazulen-5-yl]ethan-1-oneAcetyl-α-cedrene[3R-(3α,3aβ,7β,8aα)]-1-(2,3,4,7,8,8a-Hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulen-5-yl)ethan-1-one

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 60 records
FragranceFlavouring and nutrient

Regulatory Lists

Inventory, screening, and regulatory list matches from public chemical databases.

SOURCE EPA CPDat 3 records
ListKeywordSource
IFRA TransparencyIFRAIFRA
inert_ingredient; non_food_use; PesticidesEPACPCat
EuropeEuropean CommissionFl@vis

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 22 of 22 studies
ValueUnitEndpointRouteSpeciesSource
13.9656498184324uMAC50--NTP_ICE_endocrine
10.4219672132238uMACC--NTP_ICE_endocrine
=1.17mg/m3DNEL systemicinhalationHumanToxValDB_GESTIS_DNEL
13.9%EC3DermalMouseNTP_ICE_skin_sensitization
13.9%EC3DermalMouseNTP_ICE_skin_sensitization
13.9%EC3DermalMouseNTP_ICE_skin_sensitization
13.9%EC3DermalMouseNTP_ICE_skin_sensitization
X6I62755AKUNIIFDA UNII substance identifier--openFDA substances
X6I62755AKUNIIFDA UNII substance identifier--openFDA substances
X6I62755AKUNIIFDA UNII substance identifier--openFDA substances
X6I62755AKUNIIFDA UNII substance identifier--openFDA substances
-%Incidence of positive responsesDermalHumanNTP_ICE_skin_sensitization
3100ug/cm2Induction dose per skin areaDermalHumanNTP_ICE_skin_sensitization
19440ug/cm2Induction dose per skin areaDermalHumanNTP_ICE_skin_sensitization
35430ug/cm2Induction dose per skin areaDermalHumanNTP_ICE_skin_sensitization
-unitlessModel Score--NTP_ICE_endocrine
0.0562unitlessModel Score--NTP_ICE_endocrine
=50mg/kg bw/dayNOAELoralRatToxValDB_ECHA_IUCLID
=80mg/kg bw/dayNOAELoralRatToxValDB_ECHA_IUCLID
=100mg/kg bw/dayNOAELoralRatToxValDB_ECHA_IUCLID
=300mg/kg bw/dayNOAELdermalRatToxValDB_ECHA_IUCLID
3unitlessRelative reliability scoreDermalHumanNTP_ICE_skin_sensitization

Showing 22 of 22 studies

REACH Registration

Registration status from the ECHA REACH registered substances database.

SOURCE ECHA (EU) 1 records
StatusNameEC NumberLink
Registered[3R-(3α,3aβ,7β,8aα)]-1-(2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulen-5-yl)ethan-1-one251-020-3ECHA overview →

Australian Status (AICIS)

Australian industrial chemicals inventory status and applicable conditions.

SOURCE AICIS inventory 1 records
Inventory Status
listed

Cosmetic Safety Profile

Same-CAS cosmetic ingredient record for cross-vertical context.

SOURCE CosIng / Ingredients DB
EU Status
restricted
Max
-
Category
Fragrance
View full cosmetic safety profile →

Pharmaceutical Data

Same-CAS pharmaceutical records from drug and bioactivity sources.

SOURCE EMBL-EBI ChEMBL CHEMBL3184309
ChEMBL Phase
Not listed
Adverse Events
0
Bioactivity
0
View full pharmaceutical profile →

Frequently Asked Questions

What is the NOAEL for Acetylcedrene?

Acetylcedrene has 22 NOAEL studies in the database. The lowest reported value is 0 % via Dermal in Human. Source: NTP_ICE_skin_sensitization.

What regulatory lists include Acetylcedrene?

Acetylcedrene appears on 3 regulatory/inventory lists including IFRA Transparency, inert_ingredient; non_food_use; Pesticides, Europe. Source: EPA CPDat.

Is Acetylcedrene used in cosmetics?

Yes, Acetylcedrene is also indexed as a cosmetic ingredient under the name Acetylcedrene. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.

Where does the safety data for Acetylcedrene come from?

Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ECHA REACH, CosIng / Ingredients DB, ChEMBL / DailyMed. All data traces to primary regulatory sources and is updated from official government databases.

Is Acetylcedrene used outside industrial chemicals?

Acetylcedrene also appears in cosmetics, pharmaceutical databases.