Is 3-Isopentenol safe in cosmetics?
3-Isopentenol has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
3-Isopentenol
Also known as: EINECS 212-110-8, UNII-KJ25C8CPFA, 2-methyl-4-hydroxybut-1-ene, Delta(3)-isopentenyl alcohol, Methallyl carbinol (+1 more)
INCI: 3-ISOPENTENOL
3-Isopentenol (CAS 763-32-6) is a cosmetic cosmetic ingredient functioning as Fragrance ingredient, solvent. NOAEL 200 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); 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 763-32-6 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
3-Isopentenol is classified GHS Danger (H226, H318, H373) in the chemicals database but is allowed in EU cosmetics.
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Fragrance ingredient, solvent
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
3-methylbut-3-en-1-ol
InChIKey
CPJRRXSHAYUTGL-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not specifically restricted by FDA; FEMA GRAS status for flavor use
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for 3-Isopentenol.
Calculate MoS for your specific formulation with the MoS Calculator.
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for 3-Isopentenol across SCCS product categories, with measured dermal absorption where available.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
10 - 100 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Flavouring and nutrient
Fragrance
Regulatory List Membership (1)
IFRA Fragrance Transparency List
Expert Verdict
Expert safety assessment and concern-level summary for 3-Isopentenol.
Regulatory Flags
fragrance-component
ifra_fragrance
Known Synonyms
EINECS 212-110-8
UNII-KJ25C8CPFA
2-methyl-4-hydroxybut-1-ene
Delta(3)-isopentenyl alcohol
Methallyl carbinol
Methyl-3-but-3-en-1-ol
Chemical Function
Fragrance
Flavouring and nutrient
Regulatory Lists
active_ingredient; Europe; Pesticides
IFRA Transparency
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
CHEMBL3561140
Frequently Asked Questions
Is 3-Isopentenol allowed in the EU?
3-Isopentenol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does 3-Isopentenol do in cosmetics?
3-Isopentenol functions as: Fragrance ingredient, solvent. It is classified as a cosmetic ingredient in our database. CAS number: 763-32-6.
Is 3-Isopentenol used outside cosmetics?
3-Isopentenol 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.
Does 3-Isopentenol have different safety status in cosmetics vs industrial chemicals?
3-Isopentenol is classified GHS Danger (H226, H318, H373) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check 3-Isopentenol compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
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
Compare limits across jurisdictions
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