3-Methyl-3-penten-2-one

3-Methyl-3-penten-2-one
Names
	IUPAC name 3-Methyl-3-penten-2-one
	Other names 3-Methylpent-3-en-2-one
Identifiers
CAS Number	565-62-8;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL3184903;
ChemSpider	4516728;
ECHA InfoCard	100.008.440
EC Number	209-283-7;
PubChem CID	5364579;
UNII	JBR4O01DB2;
CompTox Dashboard (EPA)	DTXSID4041490 ;
	InChI InChI=1S/C6H10O/c1-4-5(2)6(3)7/h4H,1-3H3/b5-4+ Key: ZAMCMCQRTZKGDX-SNAWJCMRSA-N;
	SMILES C/C=C(\C)/C(=O)C;
Properties
Chemical formula	C6H10O
Molar mass	98.145 g·mol−1
Appearance	Clear liquid
Density	0.875 g/cm3 (at 20 °C)
Hazards
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H226, H302, H312, H315, H319, H331, H332, H335
GHS precautionary statements	P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+312, P302+352, P303+361+353, P304+312, P304+340, P305+351+338, P311, P312, P321, P322, P330, P332+313, P337+313, P362
Flash point	34 °C (93 °F) (closed cup)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

3-Methyl-3-penten-2-one is an unsaturated aliphatic ketone. It is an isomer of mesityl oxide and isomesityl oxide. It is a precursor of 3-methyl-2-pentanone (methyl sec-butyl ketone) and is obtained by acid-catalyzed dehydration of 4-hydroxy-3-methyl-2-pentanone. It is used as an intermediate in organic chemistry syntheses.[1]

References

Hardo Siegel, Manfred Eggersdorfer (2007), "Ketones", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, p. 5

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[ullket-1] Hardo Siegel, Manfred Eggersdorfer (2007), "Ketones", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, p. 5