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Sodium formaldehyde sulfoxylate

CAS 16750-31-5

Also registered as 9 other CAS numbers

15193-20-1 · 15678-57-6 · 38563-80-3 · 59348-48-0 · 69346-14-1 · 134036-48-9 · 1085937-62-7 · 1129303-06-5 · 149-44-0

Sodium formaldehyde sulfoxylate chemical structure

Concern score

Not assessed — no hazard data yet.

Sodium formaldehyde sulfoxylate in plain language

What it is

On cosmetic ingredient lists it appears as “Sodium oxymethylene sulfoxylate”.

Also known as Sodium oxymethylene sulfoxylate · Sodium sulfoxylate formaldehyde (anhydrous) · Oxymethansulfinsaeuren natrium · Sodium hydroxymethanesulfinate · Methanesulfinic acid, hydroxy-, monosodium salt · Sodium formaldehydesulfoxylate

Show all 25 names

Albalite c · Aldanil · Bleachit D · Bruggolit C · C.I. Reducing Agent 2 · Formaldehyde sodium sulfoxylate · Formaldehydesulfoxylic acid sodium salt · Formapon · Monosodium hydroxymethanesulfinate · Rongalit hydrate · Sodium formaldehyde sulphoxylate · Sodium hydroxymethanesulphinate · Sodium hydroxymethansulfinate · Sodium hydroxymethylsulfinate · Sodium oxymethanesulfinic acid · UNII-X4ZGP7K714 · formaldehyde hydrosulfite · sodium formaldehyde bisulfite · sodium formaldehyde sulfite

What it does

Used in cosmetics as a reducing agent.

  • Reducing
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Sodium formaldehyde sulfoxylate appears in these published regulatory listings.

  • Inactive ingredient in US drugs

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USFDAinactive ingredient database5 entries — 4 administration routes
    • Route: INTRAMUSCULAR; Dosage form: INJECTION; Potency: 3 mgSource →
    • Route: INTRAVENOUS; Dosage form: INJECTION; Potency: 3 mgSource →
    • Route: INTRAVENOUS; Dosage form: INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION; Potency: 0.1 %w/vSource →
    • Route: SUBCUTANEOUS; Dosage form: INJECTION; Potency: 3 mgSource →
    • Route: TOPICAL; Dosage form: CREAM; Potency: NASource →
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 5 composition records across product categories including Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Reducing agent, Chemical reaction regulator.
    • EPA CPDat observed this chemical in 5 composition records across product categories including Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Reducing agent, Chemical reaction regulator.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Sodium formaldehyde sulfoxylate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Sodium formaldehyde sulfoxylate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EPA Chemical and Products Database

    exposure · updated January 7, 2008

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA Inactive Ingredient Database

    regulatory · updated 2026-01-09

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Allergen profile

Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.

  • SulphitesContains · Oral (ingested)

    Source: chemindex_name_match

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Sodium formaldehyde sulfoxylate in a product composition. These are source records, not Greenveil catalog products.

Source records

5

Named organisations

4

Specialty occupational products

Typical roles

Reducing
See products using Sodium formaldehyde sulfoxylate →

Catalog

Found in these products

Cosmetic and personal-care products that list Sodium formaldehyde sulfoxylate are shown first. Their ingredient lists include Sodium formaldehyde sulfoxylate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.