4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid

BGC Id:	503043684426
CAS No:	56671-28-4
Synonyms:	4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid ; 4-oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylic acid ; 4,5,6,7-tetrahydro-4-oxobenzofuran-3-carboxylic acid ; buttpark 29\08-32 ; akos bbs-00000134 ; iflab-bb f1901-0074 ; 4,5,6,7-tetrahydro-4-oxo-3-benzofurancarboxylicacid ; 4-oxo-4,5,6,7-tetrahydrocoumarone-3-carboxylic acid ; 3-benzofurancarboxylicacid, 4,5,6,7-tetrahydro-4-oxo- ; 4 5 6 7-tetrahydro-4-oxobenzofuran-3- &
Molecular Formula:	C9H8O4
Molecular Weight:	180.16
EINECS:

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The last intensive check and update was carried out on 2025/10/01.

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Synonyms:

4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid ; 4-oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylic acid ; 4,5,6,7-tetrahydro-4-oxobenzofuran-3-carboxylic acid ; buttpark 29\08-32 ; akos bbs-00000134 ; iflab-bb f1901-0074 ; 4,5,6,7-tetrahydro-4-oxo-3-benzofurancarboxylicacid ; 4-oxo-4,5,6,7-tetrahydrocoumarone-3-carboxylic acid ; 3-benzofurancarboxylicacid, 4,5,6,7-tetrahydro-4-oxo- ; 4 5 6 7-tetrahydro-4-oxobenzofuran-3- &

CAS:

56671-28-4

EINECS:

Molecular Formula:

C9H8O4

MDL:

MFCD00052170

SMILES:

CN1C=NC2=C1N=CN=C2Cl

Properties

Molecular Weight:

180.16 g·mol−1

Melting point:

140 °C

Safety Information

Hazard Symbols: C

Europe standard Hazard pictograms, code and definition

Hazard Classes:

irritant

Hazardous Substances Data:

Non-Regulated Material ¹

Risk Codes:

36/37/38 (R)

Safety Codes:

26-36/37/39 (S)

The following providers cannot be verified precisely. The companies have offered the product in the past, but despite all care, the companies could not confirm it 100 percent!

SYNCHEM UG & Co. KG

Synchem UG & Co. KG synthesizes rare chemicals from the area of organic chemistry. Synchem UG & Co. KG offers a comprehensive product range from build... Request

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In addition to the providers presented here for 4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid with the CAS number 56671-28-4, there are other 9 providers with slightly different product names available for this CAS number.

4,5,6,7-Tetrahydro-4-oxo-3-benzofurancarboxylic acid

BIOZOL Diagnostica Vertrieb GmbH | BuGuCh & Partners +1 additional providers that we know from the past

4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid

Leap Chem Co., Ltd +4 additional providers that we know from the past