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CAS 870-72-4

CAS 870-72-4 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 870-72-4
CAS 870-72-4PubChem CID 2723822

Sodium Formaldehyde Bisulfite

IUPAC name
sodium hydroxymethanesulfonate
Molecular formula
CH3NaO4S
Molecular weight
134.09 g/mol
Exact mass
133.96497403 Da
Topological polar surface area
85.8 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
4
Covalent units
2
Defined stereocentres
0

Also known as

Formaldehyde sodium bisulfiteFormbisSodium hydroxymethanesulphonateHydroxymethanesulfonic acid monosodium saltSodium formaldehydebisulfiteHSDB 5766Sodium hydroxymethylsulfonateNSC 2441
16 more reported names
EINECS 212-800-9UNII-I566KHA05FFormaldehyde sulfite sodium saltI566KHA05FMonosodium hydroxymethanesulfonateAI3-23356Methanesulfonic acid, hydroxy-, sodium saltFormaldehyde-sodium bisulfite compoundFormaldehyde, compd with monosodium sulfite (1:1)Formaldehyde, compd with sodium hydrogen sulfate (1:1)Hydroxymethanesulfonic acid, monosodium saltSulfuric acid, monosodium salt, compd with formaldehyde (1:1)Sulfurous acid, monosodium salt, compd with formaldehyde (1:1)1-Hydroxymethanesulfonic acid sodium salt (1:1)NSC-2441FORMALDEHYDE SODIUM BISULFITE [MI]
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 870-72-4

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No records found for this CAS number.

How CAS 870-72-4 is used on this site

CAS 870-72-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 870-72-4 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.