Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL

Also known as: EINECS 212-800-9, Formaldehyde, compd with monosodium sulfite (1:1), Formaldehyde, compd with sodium hydrogen sulfate (1:1), Formaldehyde-sodium bisulfite compound, Methylolsulfonic acid sodium salt (+5 more)

INCI: SODIUM HYDROXYMETHANE SULFONATE (FORMALDEHYDE SODIUM BISULFITE ADDUCT)

Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL (CAS 870-72-4) is a cosmetic cosmetic ingredient functioning as Reducing Agent; releases formaldehyde. EU Regulation 1223/2009 status: prohibited, max 0.2%. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and pharmaceutical data.

View industrial chemical safety profile for CAS 870-72-4 →

Auto-generated CPSR Part A draft with source citations
Function
Reducing Agent; releases formaldehyde
Safety Rating
POOR

Chemistry & Identifiers

Formula
CH3NaO4S
MW
134.09 g/mol
EC Number
212-800-9
PubChem CID
2723822
IUPAC Name
sodium hydroxymethanesulfonate
InChIKey
UOULCEYHQNCFFH-UHFFFAOYSA-M

Regulatory Status

EU EU Status prohibited
EU Max Conc. 0.2%
US US Status permitted
US Notes Permitted with restrictions — formaldehyde limited; labeling required; MoCRA scrutiny likely

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL.

Calculate MoS for your specific formulation with the MoS Calculator.

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
10 - 100 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Safety (1)
Skin Eye Respiratory Irritation
A human skin and eye irritant. /Formaldehyde/ | A human skin and eye irritant. /Formaldehyde/
Source: Hazardous Substances Data Bank (HSDB)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Biocide Reducing agent

Expert Verdict

Expert safety assessment and concern-level summary for Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL.

Known Synonyms

EINECS 212-800-9 Formaldehyde, compd with monosodium sulfite (1:1) Formaldehyde, compd with sodium hydrogen sulfate (1:1) Formaldehyde-sodium bisulfite compound Methylolsulfonic acid sodium salt NSC 2441 Sodium formaldehydebisulfite Sulfuric acid, monosodium salt, compd with formaldehyde (1:1) Sulfurous acid, monosodium salt, compd with formaldehyde (1:1) UNII-I566KHA05F

Chemical Function

Biocide Reducing agent

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

ChEMBL ID
CHEMBL3185494
View full pharmaceutical profile →

Frequently Asked Questions

Is Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL safe in cosmetics?

Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL has a safety rating of "POOR" in our database. EU status: prohibited. US status: permitted.

Is Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL allowed in the EU?

Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL EU regulatory status: prohibited. Maximum allowed concentration: 0.2%. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL do in cosmetics?

Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL functions as: Reducing Agent; releases formaldehyde. It is classified as a cosmetic ingredient in our database. CAS number: 870-72-4.

Is Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL used outside cosmetics?

Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL have different safety status in cosmetics vs industrial chemicals?

Sodium Hydroxymethane Sulfonate ⚠️ CRITICAL is prohibited in EU cosmetics at max 0.2% but has active industrial GHS classifications.

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SODIUM HYDROXYMETHANE SULFONATE
Good Chemical family
Antimicrobial, Reducing
SODIUM (ASTROCARYUM VULGARE/EUTERPE OLERACEAE/PALM) FRUIT/(ASTROCARYUM VULGARE/PALM) KERNEL/(ASTROCARYUM MURUMURU/BABASSU/BERTHOLLETIA EXCELSA/CARAPA GUIANENSIS/COCOA/FEVILLEA TRILOBATA/PASSIFLORA EDULIS/THEOBROMA GRANDIFLORUM) SEEDATE
Good Browse nearby
Cleansing, Surfactant - Cleansing
SODIUM BEHENOYL/COCOYL (ALANINE/ARGININE/ASPARAGINE/ASPARTIC ACID/GLUTAMIC ACID/GLYCINE/ISOLEUCINE/LEUCINE/LYSINE/METHIONINE/PHENYLALANINE/PROLINE/SERINE/THREONINE/TRYPTOPHAN/TYROSINE/VALINE)
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