4-(methylsulfonyl)benzene-1,2-diamine

4-(甲基磺酰基)苯-1,2-二胺

Also known as: 1,2-diamino-4-(methylsulfonyl)benzene, 4-methylsulfonyl-1,2-diaminobenzene, 4-methanesulfonylbenzene-1,2-diamine, 4-methylsulfonyl-o-phenylenediamine, 4-methylsulfonyl-ortho-phenylenediamine, 4-methylsulfonylbenzene-1,2-diamine, 3,4-diaminophenyl methyl sulfone, 4-(methylsulphonyl)benzene-1,2-diamine

4-(methylsulfonyl)benzene-1,2-diamine (CAS 21731-57-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H10N2O2S and a molecular weight of 186.23100 g/mol. It is also known as 1,2-diamino-4-(methylsulfonyl)benzene, 4-methylsulfonyl-1,2-diaminobenzene and 4-methanesulfonylbenzene-1,2-diamine. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21731-57-7
Jingsj CID: J-1042370-7
Molecular Formula: C₇H₁₀N₂O₂S
Chinese Name: 4-(甲基磺酰基)苯-1,2-二胺
Molecular Weight: 186.23100 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 4-(methylsulfonyl)benzene-1,2-diamine?

The CAS number of 4-(methylsulfonyl)benzene-1,2-diamine is 21731-57-7.

What are the molecular formula and molecular weight of 4-(methylsulfonyl)benzene-1,2-diamine?

4-(methylsulfonyl)benzene-1,2-diamine has molecular formula C7H10N2O2S and molecular weight 186.23100 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-(methylsulfonyl)benzene-1,2-diamine (CAS 21731-57-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1042370-7 (accessed 2026-10-22).

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