1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid

1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid structure

CAS No.: 267667-78-7

Chemical Name:: 1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid

Synonyms: 3-Sulfolene-3-carboxylic acid;3-Thiophenecarboxylic acid, 2,5-dihydro-, 1,1-dioxide;1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid

CBNumber:: CB85507944

Molecular Formula:: C5H6O4S

Molecular Weight:: 162.16

MDL Number:: MFCD20656882

MOL File:: 267667-78-7.mol

MSDS File:: SDS

Last updated:2026-05-28 05:53:35

Request For Quotation

1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid Properties

Melting point	60-70 °C
Boiling point	489.6±45.0 °C(Predicted)
Density	1.640±0.06 g/cm3(Predicted)
pka	2.89±0.20(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H335-H315-H319-H302
Precautionary statements	P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501

1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Biosynth	SKA66778	3-Sulfolene-3-carboxylic acid	267667-78-7	50mg	$606.5	2026-06-05	Buy
Biosynth	SKA66778	3-Sulfolene-3-carboxylic acid	267667-78-7	0.5g	$1899.8	2026-06-05	Buy
aablocks	AA01ALMP	1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid 97%	267667-78-7	100mg	$318	2026-05-29	Buy
aablocks	AA01ALMP	1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid 97%	267667-78-7	250mg	$529	2026-05-29	Buy
aablocks	AA01ALMP	1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid 97%	267667-78-7	1g	$1686	2026-05-29	Buy

Product number	Packaging	Price	Buy
SKA66778	50mg	$606.5	Buy
SKA66778	0.5g	$1899.8	Buy
AA01ALMP	100mg	$318	Buy
AA01ALMP	250mg	$529	Buy
AA01ALMP	1g	$1686	Buy

1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid Suppliers

Global Suppliers ( 3)

Supplier	Tel	Email	Country	ProdList	Advantage
Changzhou Hopschain Chemical Co.,Ltd.	85528066 13775048983	sales@hopschem.com	China	31548	55
Block Chemical Technology (Shanghai) Co., Ltd.	021-20432219 13918097649	li_jinfei@acblock-lab.com	China	10000	58

Supplier	Advantage
Changzhou Hopschain Chemical Co.,Ltd.	55
Block Chemical Technology (Shanghai) Co., Ltd.	58

267667-78-7 (1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid) Related Search:

3-Methoxycarbonyl-3-sulfolene 3-Thiophenecarbonitrile, 2,5-dihydro-, 1,1-dioxide 3-Methyl-2,5-dihydrothiophene-1,1-dioxide 3-vinyl-2,5-dihydrothiophene1,1-Dioxide 3-(Bromomethyl)-2,5-dihydro-1H-1-lambda6-thiophene-1,1-dione

3-Thiophenemethanamine,2,5-dihydro-,1,1-dioxide(9CI)

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1,1-dioxo-2,5-dihydro-1lambda6-thiophene-3-carboxylic acid 3-Thiophenecarboxylic acid, 2,5-dihydro-, 1,1-dioxide 3-Sulfolene-3-carboxylic acid 267667-78-7