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3-Oxo-2,3-dihydrobenzo[b]thiophene-2-carboxylic acid is a chemical compound with the molecular formula C9H6O3S. It is a derivative of benzo[b]thiophene, a heterocyclic aromatic compound consisting of a benzene ring fused to a thiophene ring. The "3-oxo" part of the name indicates the presence of a carbonyl group (C=O) at the 3-position, while the "2-carboxylic acid" signifies a carboxylic acid functional group (-COOH) at the 2-position. 3-Oxo-2,3-dihydrobenzo[b]thiophene-2-carboxylic acid is an important intermediate in the synthesis of various pharmaceuticals and agrochemicals, as well as a key building block in the preparation of novel heterocyclic compounds with potential applications in materials science and medicinal chemistry.

6421-82-5

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6421-82-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6421-82-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,2 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6421-82:
(6*6)+(5*4)+(4*2)+(3*1)+(2*8)+(1*2)=85
85 % 10 = 5
So 6421-82-5 is a valid CAS Registry Number.
InChI:InChI=1/C9H6O3S/c10-7-5-3-1-2-4-6(5)13-8(7)9(11)12/h1-4,8H,(H,11,12)

6421-82-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-oxo-1-benzothiophene-2-carboxylic acid

1.2 Other means of identification

Product number -
Other names Thioindoxyl-2-carboxylicacid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:6421-82-5 SDS

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