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4-METHOXY-3-BUTEN-2-ONE

4-METHOXY-3-BUTEN-2-ONE structure

CAS No.: 51731-17-0

Chemical Name:: 4-METHOXY-3-BUTEN-2-ONE

Synonyms: 4-methoxy-3-butene-2-one;TRANS-4-METHOXY-3-BUTEN-2-ONE;Einecs 257-364-0;4-METHOXY-3-BUTEN-2-ONE;Trans 4-Methoxy Butenone;(E)-4-methoxy-3-buten-2-one;(3E)-4-Methoxybut-3-en-2-one;(3E)-4-Methoxy-3-buten-2-one;TRANS-1-METHOXY-1-BUTEN-3-ONE;3-Buten-2-one,4-methoxy-, (3E)-

CBNumber:: CB7449808

Molecular Formula:: C5H8O2

Molecular Weight:: 100.12

MDL Number:: MFCD00008778

MOL File:: 51731-17-0.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 03:44:28

Product description	Number	Pack Size	Price
trans-4-Methoxy-3-buten-2-one technical grade, 90%	122068	10g	$108
trans-4-Methoxy-3-buten-2-one technical grade, 90%	122068	50g	$328
trans-4-Methoxy-3-buten-2-one 90%GC	AA0035N6	250mg	$8
trans-4-Methoxy-3-buten-2-one 90%GC	AA0035N6	1g	$10
trans-4-Methoxy-3-buten-2-one 90%	AA0035N6	5g	$11

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4-METHOXY-3-BUTEN-2-ONE Properties

Melting point	0℃
Boiling point	200 °C (lit.)
Density	0.982 g/mL at 25 °C (lit.)
refractive index	n20/D 1.468(lit.)
Flash point	146 °F
storage temp.	2-8°C
solubility	sol THF, ether, acetonitrile, benzene.
form	liquid
Appearance	Colorless to light yellow Liquid
BRN	2070991
InChI	InChI=1S/C5H8O2/c1-5(6)3-4-7-2/h3-4H,1-2H3/b4-3+
InChIKey	VLLHEPHWWIDUSS-ONEGZZNKSA-N
SMILES	CC(=O)/C=C/OC
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H227-H302-H315-H319-H335
Precautionary statements	P210-P235-P261-P280-P302+P352-P304+P340-P305+P351+P338-P370+P378-P403+P235
PPE	Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Risk Statements	10
Safety Statements	23-24/25
RIDADR	1224
WGK Germany	3
F	10-21
Storage Class	10 - Combustible liquids

4-METHOXY-3-BUTEN-2-ONE price More Price(9)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	122068	trans-4-Methoxy-3-buten-2-one technical grade, 90%	51731-17-0	10g	$108	2026-04-30	Buy
Sigma-Aldrich	122068	trans-4-Methoxy-3-buten-2-one technical grade, 90%	51731-17-0	50g	$328	2026-04-30	Buy
aablocks	AA0035N6	trans-4-Methoxy-3-buten-2-one 90%GC	51731-17-0	250mg	$8	2026-05-28	Buy
aablocks	AA0035N6	trans-4-Methoxy-3-buten-2-one 90%GC	51731-17-0	1g	$10	2026-05-28	Buy
aablocks	AA0035N6	trans-4-Methoxy-3-buten-2-one 90%	51731-17-0	5g	$11	2026-05-28	Buy

Product number	Packaging	Price	Buy
122068	10g	$108	Buy
122068	50g	$328	Buy
AA0035N6	250mg	$8	Buy
AA0035N6	1g	$10	Buy
AA0035N6	5g	$11	Buy

4-METHOXY-3-BUTEN-2-ONE Chemical Properties,Uses,Production

Uses

4-Methoxy-3-buten-2-one is a versatile four-carbon synthon; precursor to the Danishefsky diene; Diels-Alder dienophile; dipolarophile; electrophilic four-carbon synthon subject to conjugate addition at C-4 followed by elimination of the methoxide anion; its enolate is a nucleophilic four-carbon building block.

storage

4-Methoxy-3-buten-2-one may be harmful by inhalation, ingestion, or skin absorption; may cause skin and eye irritation; in addition to standard safety practice, mechanical exhaust is required. Do not breathe vapor. Store in refrigerator under nitrogen or argon.

4-METHOXY-3-BUTEN-2-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

1-METHOXY-3-TRIMETHYLSILOXY-1,3-BUTADIENE 3-acetyl-6-methylpyridin-2(1H)-one

4-METHOXY-3-BUTEN-2-ONE Suppliers

Global( 86)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shenzhen Nexconn Pharmatechs Ltd	+86-755-89396905 +86-15013857715	admin@nexconn.com	China	10403	58
Antai Fine Chemical Technology Co.,Limited	18503026267	info@antaichem.com	CHINA	9636	58
Hubei Ipure Biology Co., Ltd	+8613367258412	ada@ipurechemical.com	China	10236	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
HONG KONG IPURE BIOLOGY CO.,LIMITED	86 18062405514 18062405514	ada@ipurechemical.com	CHINA	3461	58
Finetech Industry Limited	+86-27-8746-5837 +8619945049750	info@finetechnology-ind.com	China	9539	58
Labnetwork lnc.	+86-27-50766799 +8618062016861	contact@labnetwork.com	China	19987	58
HANGZHOU LEAP CHEM CO., LTD.	+86-571-87711850	market18@leapchem.com	China	24597	58
ZHEJIANG JIUZHOU CHEM CO., LTD	+86-0576225566889 +86-13454675544	admin@jiuzhou-chem.com；jamie@jiuzhou-chem.com；alice@jiuzhou-chem.com	China	12272	58
Wuhan Topule Biopharmaceutical Co., Ltd	+8618327326525	masar@topule.com	China	8467	58

Supplier	Advantage
Shenzhen Nexconn Pharmatechs Ltd	58
Antai Fine Chemical Technology Co.,Limited	58
Hubei Ipure Biology Co., Ltd	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
HONG KONG IPURE BIOLOGY CO.,LIMITED	58
Finetech Industry Limited	58
Labnetwork lnc.	58
HANGZHOU LEAP CHEM CO., LTD.	58
ZHEJIANG JIUZHOU CHEM CO., LTD	58
Wuhan Topule Biopharmaceutical Co., Ltd	58

4-METHOXY-3-BUTEN-2-ONE Spectrum

4-METHOXY-3-BUTEN-2-ONE(51731-17-0)¹HNMR 4-METHOXY-3-BUTEN-2-ONE(51731-17-0)Raman 4-METHOXY-3-BUTEN-2-ONE(51731-17-0)IR 4-METHOXY-3-BUTEN-2-ONE(51731-17-0)FT-IR

51731-17-0(4-METHOXY-3-BUTEN-2-ONE)Related Search:

trans-4-Methycyclohexyl isocyanate p-Coumaric acid TRANS-4-HYDROXYCYCLOHEXANECARBOXYLIC ACID trans-4-Methylcyclohexyl amine trans-4-MethoxycyclohexanaMine HCl

trans-Methyl4-hydroxycyclohexanecarboxylate trans-4-Methylcyclohexylamine hydrochloride 3-Methoxy-3-buten-2-one 4-METHOXY-3-BUTEN-2-ONE 4-(Dimethylamino)-4-methoxy-3-buten-2-one

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(3E)-4-Methoxy-3-buten-2-one 4-METHOXY-3-BUTEN-2-ONE trans-4-methoxy-3-buten-2-one (1-1-3) (E)-4-methoxy-3-buten-2-one TRANS-4-METHOXY-3-BUTEN-2-ONE, TECH., 90 % Trans 4-Methoxy Butenone TRANS-1-METHOXY-1-BUTEN-3-ONE TRANS-4-METHOXY-3-BUTEN-2-ONE trans-4-Methoxy-3-buten-2-one technical grade, 90% (3E)-4-Methoxybut-3-en-2-one Einecs 257-364-0 3-Buten-2-one,4-methoxy-, (3E)- 4-methoxy-3-butene-2-one trans-4-Methoxy-3-buten-2-one 51731-17-0 C3 to C6 Carbonyl Compounds Building Blocks Organic Building Blocks Ketones C3 to C6 Carbonyl Compounds Ketones