3-Amino-2-hydroxybenzenesulfonamide CAS 473734-93-9
| CAS No. | 473734-93-9 |
| Molecular Formula | C6H8N2O3S |
| Molecular Weight | 188.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Amino-2-hydroxybenzenesulfonamide (C6H8N2O3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 188.20 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 3-Amino-2-hydroxybenzenesulfonamide (CAS 473734-93-9), a certified reference material (molecular formula C6H8N2O3S, MW 188.20 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Amino-2-hydroxybenzenesulfonamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O3S |
| Molecular Weight | 188.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 2-Amino-6-hydroxybenzenesulfonamide (CAS 1243393-32-9)
- 2-Amino-5,6-dihydro-4-oxo-4H-1,3-thiazine-5-acetic acid (CAS 137017-77-7)
- 6-Amino-2-methylpyridine-3-sulfonic acid (CAS 1399663-63-8)
- (S)-3-Amino-4-butoxy-4-oxobutanoic acid (CAS 4133-89-5)
- 2-amino-3-hydroxybenzene-1-sulfonamide (CAS 847229-81-6)
- 2-Amino-4-hydroxybenzenesulfonamide (CAS 873394-63-9)
- 3-Amino-4-hydroxybenzenesulfonamide (CAS 98-32-8)
- 4-Amino-2-hydroxybenzenesulfonamide (CAS 647830-76-0)
Recommended Standards
- 3-acetylpyrrole-1-sulfonamide (CAS 2172947-74-7)
- 3,5-Diaminobenzenesulfonic acid (CAS 54530-94-8)
- 3-fluoroimidazo[1,2-a]pyridine-2-carboxylic acid (CAS 898156-12-2)
- 3,4-Diaminobenzenesulfonic acid (CAS 7474-78-4)
- 6-(Trifluoromethyl)thiazolo[4,5-b]pyridin-2-amine hydrobromide (CAS 1354448-66-0)
- 4-Chloro-2-fluoro-N-(2-fluorophenyl)-5-[[(8aR)-hexahydropyrrolo[1,2-a]pyrazin-2(1H)-yl]carbonyl]benzenesulfonamide (CAS 1235560-28-7)
- 4-Methyl-4,5-dihydropyridazin-3(2H)-one (CAS 105537-87-9)
- 1-(Tetrahydro-2H-pyran-4-yl)butan-2-one (CAS 855235-50-6)
- Ethyl isoxazol-5-ylcarbamate (CAS 859765-43-8)
- 8-Bromo-2-phenyl-4H-chromen-4-one (CAS 1218-52-6)
- N-Ethyl-3-(isopentyloxy)aniline (CAS 1040684-37-4)
- 2-(4-Methoxyphenoxy)propanoyl chloride (CAS 111479-09-5)
- 2-(5-(Phenoxymethyl)-1,2,4-oxadiazol-3-yl)ethan-1-amine (CAS 946776-83-6)
- Insulin Degludec Impurity 20 (CAS CATO-C4X-215720)
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