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3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone

3-(4,5-二氢-3-甲基-5-氧代-1H-吡唑-1-基)-苯磺酰胺

Also known as: 3-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonamide, 1-(3-Sulfamidophenyl)-3-methyl-5-pyrazolone, m-Sulfamidopyrazolone, Sulfamidopyrazolone, 3-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide, MFCD00035707, EINECS 201-895-2

3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone (CAS 89-29-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H11N3O3S and a molecular weight of 253.27800 g/mol. It is also known as 3-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonamide, 1-(3-Sulfamidophenyl)-3-methyl-5-pyrazolone and m-Sulfamidopyrazolone. Key properties include a melting point of 202-206 °C(lit.), a boiling point of 541.6ºC at 760 mmHg, a density of 1.52 g/cm3 and a flash point of 281.4ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
89-29-2
Jingsj CID
J-24047-7
Molecular Formula
C10H11N3O3S
Chinese Name
3-(4,5-二氢-3-甲基-5-氧代-1H-吡唑-1-基)-苯磺酰胺
Molecular Weight
253.27800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point202-206 °C(lit.)
Boiling Point541.6ºC at 760 mmHg
Density1.52 g/cm3
Flash Point281.4ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone?

The CAS number of 3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone is 89-29-2.

What are the molecular formula and molecular weight of 3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone?

3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone has molecular formula C10H11N3O3S and molecular weight 253.27800 g/mol.

Is 3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone hazardous?

3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone (CAS 89-29-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24047-7 (accessed 2026-10-24).

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