3-Carene

Carene

Names
Preferred IUPAC name 3,7,7-Trimethylbicyclo[4.1.0]hept-3-ene
Identifiers
CAS Number	13466-78-9 Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL506854 N
ChemSpider	10660720 Y
ECHA InfoCard	100.033.367
KEGG	C11382 N
PubChem CID	26049
UNII	H2M15SNR6N N
CompTox Dashboard (EPA)	DTXSID4047462
InChI InChI=1S/C10H16/c1-7-4-5-8-9(6-7)10(8,2)3/h6-8H,4-5H2,1-3H3 Y Key: KALFVDDBBPRATR-UHFFFAOYSA-N Y InChI=1/C10H16/c1-7-4-5-8-9(6-7)10(8,2)3/h6-8H,4-5H2,1-3H3 Key: KALFVDDBBPRATR-UHFFFAOYAY
SMILES CC2(C)C\1CCC(C)/C=C/12
Properties
Chemical formula	C10H16
Molar mass	136.238 g·mol−1
Density	0.86 g/cm3 (20 °C)
Boiling point	170–172 °C (338–342 °F; 443–445 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Carene, or delta-3-carene, is a bicyclic monoterpene consisting of fused cyclohexene and cyclopropane rings. It occurs as a constituent of turpentine, with a content as high as 42% depending on the source. Carene has a sweet and pungent odor. A colorless liquid, it is not soluble in water, but miscible with fats and oils. It is chiral, occurring naturally both as the racemate and enantio-enriched forms.

Reactions and uses

Treatment with peracetic acid gives 3,4-caranediol. Pyrolysis over ferric oxide induces rearrangement, giving p-cymene. Carene is used in the perfume industry and as a chemical intermediate.