Also known as: Caswell No. 774, EINECS 231-890-0, EPA Pesticide Chemical Code 078202, Sodium hyposulfite, Hydrosulfite R Conc (+2 more)
CAS 7775-14-6
Dithionous acid, disodium salt (CAS 7775-14-6) is a chemical substance with GHS signal word Danger; key hazard signal: H251; H302. Key regulatory status: REACH registered, 1 regulatory/inventory list, cosmetic ingredient cross-reference; source data from ECHA CLP, EPA ToxValDB, EPA CPDat, AICIS, ECHA REACH, ILO ICSC.
Dithionous acid, disodium salt is classified GHS Danger (H251, H302) in the chemicals database but is allowed in EU cosmetics at max 0.2%.
CAS, identifiers, formula, and alternate names for the matched substance record.
EU harmonized hazard classification, hazard statements, pictograms, and signal word.
| Hazard Class | H-Statements | Pictograms | Signal |
|---|---|---|---|
| Self-heat. 1; Acute Tox. 4 * | H251; H302 | GHS02; GHS07 | Danger |
International Chemical Safety Card hazard and exposure summary.
| Field | Value |
|---|---|
| GHS Signal Word | WARNING |
| GHS Hazard Statements | Self-heating in large quantities; may catch fire. May be harmful if swallowed Causes eye irritation Harmful to aquatic life |
| Short-term Effects | The substance is irritating to the eyes and respiratory tract. |
| Routes of Exposure | The substance can be absorbed into the body by ingestion. |
Industrial and product-use categories associated with this substance.
Inventory, screening, and regulatory list matches from public chemical databases.
| List | Keyword | Source |
|---|---|---|
| food_additive; Substances Added to Food (formerly EAFUS) (2/2019) | FDA | United States Food and Drug Administration (FDA) |
Toxicology endpoints rendered from public NOAEL study rows.
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| =206 | mg/m3 | DNEL systemic | inhalation | Human | ToxValDB_GESTIS_DNEL |
| 2K5B8F6ES1 | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 2K5B8F6ES1 | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 2K5B8F6ES1 | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 2K5B8F6ES1 | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 92.94 | % | Viability | Dermal | - | NTP_ICE_skin_irritation |
| 107.97 | % | Viability | Dermal | - | NTP_ICE_skin_irritation |
Showing 7 of 7 studies
Registration status from the ECHA REACH registered substances database.
| Status | Name | EC Number | Link |
|---|---|---|---|
| Registered | Sodium dithionite | 231-890-0 | ECHA overview → |
Australian industrial chemicals inventory status and applicable conditions.
Same-CAS cosmetic ingredient record for cross-vertical context.
Same-CAS pharmaceutical records from drug and bioactivity sources.
Dithionous acid, disodium salt (CAS 7775-14-6) is classified under EU CLP Annex VI as Self-heat. 1; Acute Tox. 4 * with signal word Danger. Hazard statements: H251; H302. Source: EU CLP Annex VI (ECHA).
Dithionous acid, disodium salt has 7 NOAEL studies in the database. The lowest reported value is 206 mg/m3 via inhalation in Human. Source: ToxValDB_GESTIS_DNEL.
Dithionous acid, disodium salt appears on 1 regulatory/inventory list including food_additive; Substances Added to Food (formerly EAFUS) (2/2019). Source: EPA CPDat.
Yes, Dithionous acid, disodium salt is also indexed as a cosmetic ingredient under the name Sodium Hydrosulfite. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.
Safety data is sourced from ECHA CLP Annex VI, EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ECHA REACH, ILO/WHO ICSC, CosIng / Ingredients DB, ChEMBL / DailyMed. All data traces to primary regulatory sources and is updated from official government databases.
Dithionous acid, disodium salt is classified GHS Danger (H251, H302) in the chemicals database but is allowed in EU cosmetics at max 0.2%.
Dithionous acid, disodium salt also appears in cosmetics, pharmaceutical databases.