3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid CAS 96-67-3
| CAS No. | 96-67-3 |
| Molecular Formula | C6H6N2O6S |
| Molecular Weight | 234.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid is closely related to a carbohydrate-derived structure, an amide group, a sulfone group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid (CAS 96-67-3) is a high-purity analytical reference standard with the molecular formula C6H6N2O6S and a molecular weight of 234.19 g/mol.
Owing to a carbohydrate-derived structure, an amide group, a sulfone group, 3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 234.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-hydroxy-5-nitrobenzenesulfonic acid 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 | C6H6N2O6S |
| Molecular Weight | 234.19 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid (CAS 96-93-5)
- 5-Amino-1-(2,4-difluorophenyl)-3-methyl-1H-pyrazole-4-carbonitrile (CAS 1020057-92-4)
- 5-Amino-1-(2,5-difluorophenyl)-3-methyl-1h-pyrazole-4-carbonitrile (CAS 1072944-86-5)
- Ethyl 2-amino-6-(trifluoromethyl)isonicotinate (CAS 1196152-54-1)
- Ethyl 2-amino-4-(trifluoromethyl)nicotinate (CAS 1227508-36-2)
- Ethyl 2-amino-3-(trifluoromethyl)isonicotinate (CAS 1227571-42-7)
- Ethyl 2-amino-5-(trifluoromethyl)isonicotinate (CAS 1227575-40-7)
- Ethyl 6-amino-2-(trifluoromethyl)nicotinate (CAS 1227579-30-7)
Recommended Standards
- (4-(Pentafluoro-lambda6-sulfanyl)phenyl)methanol (CAS 773872-73-4)
- (3-(Pentafluoro-λ6-sulfanyl)phenyl)methanol (CAS 773872-71-2)
- 4-(Pentafluoro-λ6-sulfanyl)benzene-1,2-diamine (CAS 663179-59-7)
- 1-(3-Fluoro-5-(trifluoromethyl)phenyl)butan-1-one (CAS 1443311-08-7)
- 1-Butylpyridin-1-ium hexafluorophosphate(V) (CAS 186088-50-6)
- 5-Chloro-2-fluorophenol (CAS 186589-76-4)
- Nor Securinine (CAS 2650-35-3)
- L-Allylglycine (CAS 16338-48-0)
- Natamycin Impurity 6 (CAS CATO-C4X-20406)
- 2-(Cyclohexyloxy)-3-hydroxy-N,N-dimethylbenzamide (CAS 1243279-63-1)
- (2Z)-2-[(2,4-Dichlorophenyl)methylidene]-1-azabicyclo[2.2.2]octan-3-one (CAS 53898-72-9)
- Thiazolo[5,4-b]pyridin-2(1H)-one (CAS 90180-85-1)
- 3-Amino-N-isopentylbenzamide (CAS 1016705-25-1)
- MOTS-c Peptide (CAS 1627580-64-6)
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