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Methanesulfonamide

Also known as: Mesyl amide, Methanesulfonyl amide, Methanesulphonamide, Methylsulfonamide, Methylsulfonamid, Methylsulfonylamine, Methanesulfonylamine

Methanesulfonamide (CAS 3144-09-0) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula CH5NO2S and a molecular weight of 95.12 g/mol. Key properties include a melting point of 85-89 °C(lit.), a boiling point of 208.2±23.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 79.7±22.6 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3144-09-0
Jingsj CID
J-3327-2
Molecular Formula
CH5NO2S
Molecular Weight
95.12 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point85-89 °C(lit.)
Boiling Point208.2±23.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point79.7±22.6 °C
Exact Mass95.004097
PSA68.54000
LogP-1.29
Vapor Pressure0.2±0.4 mmHg at 25°C
Refractive Index1.460

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2935009090
Summary2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0%

Frequently Asked Questions

What is the CAS number of Methanesulfonamide?

The CAS number of Methanesulfonamide is 3144-09-0.

What are the molecular formula and molecular weight of Methanesulfonamide?

Methanesulfonamide has molecular formula CH5NO2S and molecular weight 95.12 g/mol.

Is Methanesulfonamide hazardous?

Methanesulfonamide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Methanesulfonamide?

For Methanesulfonamide, Upstream Products: iodomethane, Methanesulfonyl bromide; Downstream Products: N-(2-Butyl-5-benzofuranyl)methanesulfonamide, Ethanesulfonamide, N,N-Dimethylmethanesulfonamide.

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

Last updated:

How to cite: Jingsj. "Methanesulfonamide (CAS 3144-09-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3327-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.