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2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one

2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one structure

CAS No.: 29605-88-7

Chemical Name:: 2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one

Synonyms: NSC42192;NSC 42192;NSC-42192;Allethrelone;(R,S)-Allethrolone;(+/-)-2-CYCLOPENTEN-1-ON;2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one;()-2-allyl-4-hydroxy-3-methylcyclopent-2-en-1-one;(±)-2-allyl-4-hydroxy-3-methylcyclopent-2-en-1-one;R，S-2-methyl-3-(2-propynyl)-4-oxo cyclopent-2-enol

CBNumber:: CB2223160

Molecular Formula:: C9H12O2

Molecular Weight:: 152.19

MDL Number:: MFCD00134674

MOL File:: 29605-88-7.mol

MSDS File:: SDS

Last updated:2026-05-28 00:00:08

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2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one Properties

Boiling point	100-103 °C(Press: 0.15 Torr)
Density	1.082±0.06 g/cm3(Predicted)
pka	12.94±0.60(Predicted)
LogP	0.420 (est)
EPA Substance Registry System	2-Cyclopenten-1-one, 4-hydroxy-3-methyl-2-(2-propenyl)- (29605-88-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS09
Signal word	Warning
Hazard statements	H400
Precautionary statements	P273-P391-P501
TSCA	TSCA listed

2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one Chemical Properties,Uses,Production

Chemical Properties

This product is yellow oily liquid, insoluble in water, soluble in benzene, chloroform and other solvents.

Synthesis Reference(s)

Journal of the American Chemical Society, 96, p. 3701, 1974 DOI: 10.1021/ja00818a082

2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one Preparation Products And Raw materials

Raw materials

Methylglyoxal 2-(1-hydroxy-3-butenyl)-5-methyl furan Buffer solution, pH 1.00 (±0.01 at 25°C), No Color, Specpure, NIST Traceable Grignard reagent S-Bioallethrin

N,N-Dimethylformamide Propargyl bromide Chloroacetone Pentene-1 2-Methylfuran

Allethrolone 3-Butynyl p-toluenesulfonate Cyclopentene 3-Chloropropyne Furfuryl alcohol

Acryl ketone 4-Hydroxy-3-methyl-2-(2-propynyl)-2-cyclopentene-1-one Allyl chloride

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Preparation Products

(4S)-4-hydroxy-3-methyl-2-prop-2-ynyl-cyclopent-2-en-1-one

2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one Suppliers

Global( 24)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58
Career Henan Chemica Co	+86-0371-86658258 +8613203830695	laboratory@coreychem.com	China	30225	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52705	58
TargetMol Chemicals Inc.	+1-781-999-5354;	support@targetmol.com	United States	39039	58
GIHI CHEMICALS CO.,LIMITED	+86-571-86217390; +8618058761490	info@gihichemicals.com	China	49968	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39927	58
Chizhou Kailong Import and Export Trade Co., Ltd.		xg01_gj@163.com	China	9484	50
Taizhou zhenhe chemical co. LTD	576-88887792 13386577269	sales@zhenhechemical.com	China	115	58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd	029-029-029-81148696 18161915376	1040@dideu.com	China	9999	58

Supplier	Advantage
CONIER CHEM AND PHARMA LIMITED	58
Career Henan Chemica Co	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
TargetMol Chemicals Inc.	58
GIHI CHEMICALS CO.,LIMITED	58
Chongqing Chemdad Co., Ltd	58
Chizhou Kailong Import and Export Trade Co., Ltd.	50
Taizhou zhenhe chemical co. LTD	58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd	58

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Methyl Allyl alcohol PYRETHRIN 1

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2-ALLYL-4-HYDROXY-3-METHYL-2-CYCLOPENTEN-1-ONE (R,S) (±)-2-allyl-4-hydroxy-3-methylcyclopent-2-en-1-one 4-HYDROXY-3-METHYL-2-(2-PROPENYL)-2-CYCLOPENTENE-1-ONE 4-Hydroxy-3-methyl-2-(2-propenyl)-2-cyclopenten-1-one(Allethrolone) Allethrelone 2-Allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one allethrolone，(R，S)-2-allyl-3-methyl-4-hydroxy-2-cyclopenten-1-one (R,S)-Allethrolone rac-(4R*)-2-Allyl-4-hydroxy-3-methyl-2-cyclopentene-1-one rac-2-Allyl-3-methyl-4α*-hydroxy-2-cyclopentene-1-one 4-Hydroxy-3-methyl-2-(2-propenyl)cyclopent-2-en-1-one (+/-)-2-CYCLOPENTEN-1-ON R，S-2-methyl-3-(2-propynyl)-4-oxo cyclopent-2-enol 2-Cyclopenten-1-one, 4-hydroxy-3-methyl-2-(2-propen-1-yl)- ()-2-allyl-4-hydroxy-3-methylcyclopent-2-en-1-one NSC 42192 NSC42192 NSC-42192 29605-88-7