2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-amine

2,2-二氧代-1,3-二氢苯并[c]噻吩-5-胺

Also known as: 5-Amino-1,3-dihydrobenzo[c]thiophene 2,2-dioxide, 5-Amino-1,3-dihydro-2λ6-benzothiophene-2,2-dione, 2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-ylamine, 5-Amino-2,3-dihydro-1H-benzo[c]thiophene-2,2-dione, 2,2-DIOXO-1,3-DIHYDROBENZO[C]THIOPHENE-5YL AMINE, 2,2-Dioxo-1,3-dihydrobenzo[c]thiophene-5yl amine, Tech., 2,2-dioxido-1,3-dihydro-2-benzothien-5-ylamine, 2,2-dioxo-1,3-dihydro-2-benzothiophen-5-amine, Benzo[c]thiophen-5-amine, 1,3-dihydro-, 2,2-dioxide, 1,3-dihydro-2-benzothiophen-5-amine 2,2-dioxide

2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-amine (CAS 70654-85-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H9NO2S and a molecular weight of 183.22800 g/mol. It is also known as 5-Amino-1,3-dihydrobenzo[c]thiophene 2,2-dioxide, 5-Amino-1,3-dihydro-2λ6-benzothiophene-2,2-dione and 2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-ylamine. Key properties include a melting point of 186ºC, a boiling point of 483.4ºC at 760 mmHg, a density of 1.438g/cm3 and a flash point of 246.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70654-85-2
Jingsj CID
J-1154028-1
Molecular Formula
C8H9NO2S
Chinese Name
2,2-二氧代-1,3-二氢苯并[c]噻吩-5-胺
Molecular Weight
183.22800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point186ºC
Boiling Point483.4ºC at 760 mmHg
Density1.438g/cm3
Flash Point246.1ºC

Frequently Asked Questions

What is the CAS number of 2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-amine?

The CAS number of 2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-amine is 70654-85-2.

What are the molecular formula and molecular weight of 2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-amine?

2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-amine has molecular formula C8H9NO2S and molecular weight 183.22800 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,2-Dioxo-1,3-dihydrobenzo[c]thiophen-5-amine (CAS 70654-85-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1154028-1 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.