Damascone

beta-Damascone

Names
IUPAC name (E)-1-(2,6,6-Trimethyl-1-cyclohexenyl)but-2-en-1-one
Other names Rose ketones
Identifiers
CAS Number	23726-91-2 Y
3D model (Jmol)	Interactive image
ChemSpider	4524302 N
ECHA InfoCard	100.041.660
PubChem	5374527
InChI InChI=1S/C13H20O/c1-5-7-11(14)12-10(2)8-6-9-13(12,3)4/h5,7H,6,8-9H2,1-4H3/b7-5+ N Key: BGTBFNDXYDYBEY-FNORWQNLSA-N N InChI=1/C13H20O/c1-5-7-11(14)12-10(2)8-6-9-13(12,3)4/h5,7H,6,8-9H2,1-4H3/b7-5+ Key: BGTBFNDXYDYBEY-FNORWQNLBE
SMILES O=C(/C1=C(/CCCC1(C)C)C)/C=C/C
Properties
Chemical formula	C13H20O
Molar mass	192.30 g/mol
Density	0.934 g/mL
Hazards
R-phrases	R43
S-phrases	S36/37
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

alpha-Damascone

Names
IUPAC name (E)-1-(2,6,6-trimethyl-1-cyclohex-2-enyl)but-2-en-1-one
Other names Rose ketones
Identifiers
CAS Number	24720-09-0 Y
3D model (Jmol)	Interactive image
ChemSpider	4518000
ECHA InfoCard	100.041.660
PubChem	5366077
InChI InChI=1S/C13H20O/c1-5-7-11(14)12-10(2)8-6-9-13(12,3)4/h5,7-8,12H,6,9H2,1-4H3/b7-5+ Key: CRIGTVCBMUKRSL-FNORWQNLSA-N
SMILES C/C=C/C(=O)C1C(=CCCC1(C)C)C
Properties
Chemical formula	C13H20O
Molar mass	192.30 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

Damascones are a series of closely related chemical compounds that are components of a variety of essential oils. The damascones belong to a family of chemicals known as rose ketones, which also includes damascenones and ionones. beta-Damascone is a contributor to the aroma of roses, despite its relatively low concentration, and is an important fragrance chemical used in perfumery.

The damascones are derived from the degradation of carotenoids.