Sodium formaldehyde bisulfite

Also known as: Formaldehyde sodium bisulfite addition compound, Sodium hydroxymethanesulphonate, Hydroxymethanesulfonic acid monosodium salt, Formaldehyde-sodium bisulfite adduct, Methanesulfonic acid, 1-hydroxy-, sodium salt (1:1), Sodium hydroxymethanesulfonate, Hydroxymethanesulfonate sodium, Natriumhydroxymethansulfonat

Sodium formaldehyde bisulfite (CAS 870-72-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula CH3NaO4S and a molecular weight of 134.087 g/mol. Key properties include a melting point of 200 °C (dec.)(lit.), a boiling point of 184ºC and a flash point of 184 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 870-72-4
Jingsj CID: J-42678-7
Molecular Formula: CH₃NaO₄S
Molecular Weight: 134.087 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	200 °C (dec.)(lit.)
Boiling Point	184ºC
Flash Point	184 °C
Exact Mass	133.964981
PSA	85.81000
Additional Property	800 g/L (20 ºC)

Customs & Trade Information

HS Code	2942000000

Frequently Asked Questions

What is the CAS number of Sodium formaldehyde bisulfite?

The CAS number of Sodium formaldehyde bisulfite is 870-72-4.

What are the molecular formula and molecular weight of Sodium formaldehyde bisulfite?

Sodium formaldehyde bisulfite has molecular formula CH3NaO4S and molecular weight 134.087 g/mol.

What are the upstream and downstream products of Sodium formaldehyde bisulfite?

For Sodium formaldehyde bisulfite, Upstream Products: Formaldehyde; Downstream Products: Anilinomethanesulfonic acid, Mesulfamide, formate.

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 formaldehyde bisulfite (CAS 870-72-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42678-7 (accessed 2026-11-06).

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