Sulfamic acid
The simplest of the sulfamic acids consisting of a single sulfur atom covalently bound by single bonds to hydroxy and amino groups and by double bonds to two oxygen atoms. — ChEBI
Safety documents & references
1 indexed referencesFind a product-specific SDS
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Identity & molecular properties
Source-linked values| CAS number | 5329-14-6 | ChEBI ↗ |
| Molecular formula | H3NO3S | ChEBI ↗ |
| Molar mass | 97.095 g/mol | ChEBI ↗ |
| Monoisotopic mass | 96.98336 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:9330 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 97.10 g/mol | PubChem ↗ |
| Exact mass | 96.98336413 Da | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifiersulfamic acidamidohydroxidodioxidosulfurIIACRCGMVDHOTQ-UHFFFAOYSA-NNS(=O)(=O)OInChI=1S/H3NO3S/c1-5(2,3)4/h(H3,1,2,3,4)Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologySafety classification · Japan
NITE / Japanese governmentSulfamic acid · 21A3578
| Endpoint | Reported classification |
|---|---|
| Skin corrosion/irritation | Category 2 |
| Serious eye damage/eye irritation | Category 2A |
| Hazardous to the aquatic environment （Acute） | Category 3 |
| Hazardous to the aquatic environment （Long-term） | Category 3 |
Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.
Read the original NITE classificationMass ↔ amount of substance
Calculated from sourced massUses 97.095 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsOSNHCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
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Sources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.