METHYL 3-OXOTETRAHYDROTHIOPHENE-2-CARBOXYLATE

CAS No.：2689-69-2

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This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
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METHYL 3-OXOTETRAHYDROTHIOPHENE-2-CARBOXYLATE Basic information

Product Name:	METHYL 3-OXOTETRAHYDROTHIOPHENE-2-CARBOXYLATE
Synonyms:	METHYL 3-OXOTETRAHYDROTHIOPHENE-2-CARBOXYLATE;tetrahydro-3-oxo-2-thiophenecarboxylicacimethylester;methyl tetrahydro-3-oxo-2-thenoate;METHYL 3-OXOTETRAHYDROTHIOPHENE-2-CARBO&;3-Oxotetrahydrothiophene-2-carboxylic acid methyl ester;Tetrahydro-3-oxo-2-thiophenecarboxylic acid methyl ester;3-ketotetrahydrothiophene-2-carboxylic acid methyl ester;methyl 3-oxothiolane-2-carboxylate
CAS:	2689-69-2
MF:	C6H8O3S
MW:	160.19
EINECS:	220-257-4
Product Categories:	Building Blocks;Heterocyclic Building Blocks;Thiophenes
Mol File:	2689-69-2.mol

METHYL 3-OXOTETRAHYDROTHIOPHENE-2-CARBOXYLATE Chemical Properties

Melting point	38 °C (lit.)
Boiling point	232-254 °C/0.1 mmHg (lit.)
density	1.281 g/mL at 1.281 °C (lit.)
refractive index	n20/D 1.511(lit.)
Fp	>230 °F
storage temp.	2-8°C
form	Liquid
pka	11.11±0.20(Predicted)
Water Solubility	Slightly soluble in water.
EPA Substance Registry System	2-Thiophenecarboxylic acid, tetrahydro-3-oxo-, methyl ester (2689-69-2)

Safety Information

Hazard Codes	Xn
Risk Statements	22-36
Safety Statements	26-36/37
WGK Germany	3
HS Code	2934999090

MSDS Information

Provider	Language
SigmaAldrich	English
ALFA	English

METHYL 3-OXOTETRAHYDROTHIOPHENE-2-CARBOXYLATE Usage And Synthesis

Uses	Methyl 3-oxotetrahydrothiophene-2-carboxylate is used in the production of dihydro-thiophen-3-one.
Synthesis Reference(s)	Journal of the American Chemical Society, 68, p. 2229, 1946 DOI: 10.1021/ja01215a034

METHYL 3-OXOTETRAHYDROTHIOPHENE-2-CARBOXYLATE Preparation Products And Raw materials

Raw materials	DIMETHYL 3-THIAADIPATE-->METHYL 4-OXOTETRAHYDROTHIOPHENE-3-CARBOXYLATE-->Methyl thioglycolate-->acrylic acid methyl ester
Preparation Products	Methyl 3-hydroxythiophene-2-carboxylate

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