Sodium methanesulfonate

Also known as: Methanesulfonic acid sodium salt, Sodium methanesulphonate, Sodium methyl sulfonate, sodium mesylate, Methanesulfonic acid, sodium salt

Sodium methanesulfonate (CAS 2386-57-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula CH3NaO3S and a molecular weight of 118.088 g/mol. Key properties include a melting point of 17-19ºC, a boiling point of 167C and a density of 1.511g/cm3. 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.: 2386-57-4
Jingsj CID: J-35704-0
Molecular Formula: CH₃NaO₃S
Molecular Weight: 118.088 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	17-19ºC
Boiling Point	167C
Density	1.511g/cm3
Exact Mass	117.970062
PSA	65.58000
LogP	0.24220
Refractive Index	1.429-1.431

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Customs & Trade Information

HS Code	2904100000
Summary	2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Sodium methanesulfonate?

The CAS number of Sodium methanesulfonate is 2386-57-4.

What are the molecular formula and molecular weight of Sodium methanesulfonate?

Sodium methanesulfonate has molecular formula CH3NaO3S and molecular weight 118.088 g/mol.

Is Sodium methanesulfonate hazardous?

Sodium methanesulfonate 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 Sodium methanesulfonate?

For Sodium methanesulfonate, Upstream Products: Methanesulfonic acid, Butyl methanesulfonate, Butyl stearate; Downstream Products: Sodium methanethiosulfonate, 3-Fluoro-4-(methylsulfonyl)benzaldehyde, Nafamostat mesilate.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Sodium methanesulfonate (CAS 2386-57-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35704-0 (accessed 2026-11-09).

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