Is Dihydrojasmone safe in cosmetics?
Dihydrojasmone has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Dihydrojasmone
Also known as: 3-Methyl-2-pentylcyclopent-2-enone, 2-Amyl-3-methyl-2-cyclopentenone, 2-n-Pentyl-3-methyl-2-cyclopenten-1-one, 2-Cyclopenten-1-one, 3-methyl-2-pentyl-, 2-Amyl-3-methyl-2-cyclopenten-1-one (+9 more)
INCI: DIHYDROJASMONE
Dihydrojasmone (CAS 1128-08-1) is a cosmetic cosmetic ingredient functioning as Perfuming agent used in floral and citrus perfume and flavor compositions. 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 and pharmaceutical data.
View industrial chemical safety profile for CAS 1128-08-1 →
Auto-generated CPSR Part A draft with source citations
Function
Perfuming agent used in floral and citrus perfume and flavor compositions
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
3-methyl-2-pentylcyclopent-2-en-1-one
InChIKey
YCIXWYOBMVNGTB-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted with no specific CFR cosmetic restriction
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Dihydrojasmone.
Calculate MoS for your specific formulation with the MoS Calculator.
Sensitization AOP Dashboard
Adverse Outcome Pathway data across 5 assays (DPRA, KeratinoSens, hCLAT, LLNA, NESIL) aggregated from public sources.
NESIL
620 µg/cm²
GHS: 1B
Human: positive
Source: HPPT: [226] Kligman AM (1972): Report to RIFM, 19 July, unpublished.
HRIPT Human Patch Test Studies
2 human repeat insult patch tests aggregated from dermatological literature.
| Test Type | N | Sensitized | Dose µg/cm² | NESIL µg/cm² | Potency |
|---|---|---|---|---|---|
| HMT | - | 0 | 2592 | - | - |
| HRIPT | - | 0 | 620 | - | - |
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Regulatory (2)
JECFA Number
1406
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
3-METHYL-2-(n-PENTANYL)-2-CYCLOPENTEN-1-ONE | 2004 | No safety concern at current levels of intake when used as a flavouring agent | TRS 928-JECFA 63/86 | FAS 54-JECFA 63/385
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Flavouring and nutrient
Fragrance
Regulatory List Membership (3)
IFRA Fragrance Transparency List
FDA Substances Added to Food (EAFUS)
Consumer Product Chemical
Expert Verdict
Expert safety assessment and concern-level summary for Dihydrojasmone.
Regulatory Flags
fragrance-component
ifra_fragrance
fda_food_additive
Known Synonyms
3-Methyl-2-pentylcyclopent-2-enone
2-Amyl-3-methyl-2-cyclopentenone
2-n-Pentyl-3-methyl-2-cyclopenten-1-one
2-Cyclopenten-1-one, 3-methyl-2-pentyl-
2-Amyl-3-methyl-2-cyclopenten-1-one
BRN 1906471
EINECS 214-434-5
FEMA No. 3763
Jasmone, dihydro-
3-Methyl-2-(n-pentanyl)-2-cyclopenten-1-one
3-Methyl-2-pentyl-2-cyclopenten-1-one
NSC 71928
2-Pentyl-3-methyl-2-cyclopenten-1-one
UNII-Y953R7PP90
Chemical Function
Fragrance
Flavouring and nutrient
Regulatory Lists
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
IFRA Transparency
consumer_product
Europe
Australian Status
AICIS status: listed
Cross-Vertical Safety Context
Same-CAS public records found in pharmaceutical data.
SOURCE
ChEMBL / DrugCentral / FAERS
DB_PHARMA CAS match
Pharmaceutical Data
Same-CAS rows from the pharmaceutical spoke database.
ChEMBL ID
CHEMBL3728427
Frequently Asked Questions
Is Dihydrojasmone allowed in the EU?
Dihydrojasmone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Dihydrojasmone do in cosmetics?
Dihydrojasmone functions as: Perfuming agent used in floral and citrus perfume and flavor compositions. It is classified as a cosmetic ingredient in our database. CAS number: 1128-08-1.
Is Dihydrojasmone used outside cosmetics?
Dihydrojasmone also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Dihydrojasmone compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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