Fragrance

3-Carene

CAS 13466-78-9 EC 236-719-3
3,7,7-Trimethylbicyclo[4.1.0]hept-3-ene; Isodiprene
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

3,7,7-Trimethylbicyclo[4.1.0]hept-3-ene; Isodiprene

Purpose

Function

Fragrance
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Restricted
Safety
MODERATE
US
Permitted
Absorptionmoderate
Sensitizationhigh
MoSadequate
NOAEL215 mg/kg
ConcernHigh
Flags
essential-oilpotential-allergenfragrance-componentifra_fragrancefda_food_additiveeu_cosing_listed
Verdict

Key concern: auto-oxidation products (hydroperoxides) are strong sensitizers — must be stored properly to prevent oxidation; common component of turpentine and pine essential oils

US Note

Permitted; no specific FDA restriction; IFRA-compliant at recommended use levels

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
13466-78-9
EC Number
236-719-3
Category
Fragrance
Updated
Apr 23, 2026