Damascone

*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 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	2208707
ChEBI	CHEBI:53220;
ChemSpider	4518000;
ECHA InfoCard	100.041.660
EC Number	246-430-4 correct ECHA infocard 100.042.195;
PubChem CID	5366077;
CompTox Dashboard (EPA)	DTXSID8051912;
	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	192.302 g·mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H317, H411
Precautionary statements	P261, P264, P270, P272, P273, P280, P301+P312, P302+P352, P321, P330, P333+P313, P363, P391, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

*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 ;
3D model (JSmol)	Interactive image;
ChemSpider	4524302 ;
ECHA InfoCard	100.041.660
EC Number	245-842-1;
PubChem CID	5374527;
UNII	I75J0X33Q6 ;
CompTox Dashboard (EPA)	DTXSID7051890 ;
	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+ Key: BGTBFNDXYDYBEY-FNORWQNLSA-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
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H317, H411
Precautionary statements	P261, P264, P272, P273, P280, P302+P352, P321, P332+P313, P333+P313, P362, P363, P391, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) 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.