Contents

Damascone

Not to be confused with Damascenone.

beta-Damascone^[1]

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 (JSmol)	Interactive image
3DMet	L01258
ChemSpider	4524302 N
ECHA InfoCard	100.041.660
EC Number	245-842-1
PubChem CID	5374527
UNII	I75J0X33Q6 Y
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+ 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
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). N verify (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 (JSmol)	Interactive image
3DMet	L01257
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). N verify (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.^[2]

The damascones are derived from the degradation of carotenoids.^[3][4]

See also[edit]

• Rose oil

References[edit]

Further reading[edit]

• Charles S. Sell. (2003). A fragrant introduction to terpenoid chemistry. Cambridge: RSC, Royal Society of Chemistry. pp. 256–257. ISBN 978-0-85404-681-2.

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