Definition
(-)-alpha-gurjunene is a carbotricyclic compound and sesquiterpene that is 1a,2,3,4,4a,5,6,7b-octahydro-1H-cyclopropa[e]azulene which is substituted by methyl groups at positions 1, 1, 4 and 7 (the 1aR,4R,4aR,7bS- diastereoisomer). It has been isolated from several plant species such as Anaphalis nubigena and Jatropha ribifolia. It has a role as a volatile oil component, an antibacterial agent and a plant metabolite. It is a sesquiterpene and a carbotricyclic compound. It is an enantiomer of a (+)-alpha-gurjunene.
Source: PubChem
Cosmetic roles
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 489-40-7
- EC No.EU chemical inventory number
- 207-695-1
- DTXSIDUS EPA chemical ID
- DTXSID0052126
- DTXCIDUS EPA compound ID
- DTXCID2030695
- IUPAC
- (1aR,4R,4aR,7bS)-1,1,4,7-Tetramethyl-1a,2,3,4,4a,5,6,7b-octahydro-1H-cyclopropa[e]azulene
- Molecular formula
- C15H24
- Molecular weight
- 204.357 g/mol
What products actually use it for
What the 2 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Fragrance2
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
1 skin studies and 0 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 1 studies
- SkinIrr2
Skin Irritation · QSAR Predicted
Source: US EPA CompTox dashboard