3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid hydrate CAS 175278-60-1
| CAS No. | 175278-60-1 |
| Molecular Formula | C6H6N2O6S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid hydrate (C6H6N2O6SH2O) contains a carbohydrate-derived structure, an amide group, a sulfone group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid hydrate (CAS 175278-60-1), molecular formula C6H6N2O6SH2O and molecular weight 252.20 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid hydrate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H6N2O6S H2O |
| Molecular Weight | 252.20 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.) | 2007 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- N-(2-chlorophenyl)-1,1,1-trifluoromethanesulfonamide (CAS 23384-02-3)
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- 5-Bromo-2,3-dihydro-1H-inden-4-amine(hydrochloride)(1:1) (CAS 2323605-94-1)
- 4-Bromo-3-(difluoromethyl)aniline (CAS 1261760-16-0)
- 2-(2-Bromoethyl)-1,4-dioxane (CAS 926624-52-4)
- 4,7-Bis(5-bromothiophen-2-yl)-2-(2-butyloctyl)-5,6-difluoro-2H-benzo[d][1,2,3]triazole (CAS 1283099-29-5)
- Mast Cell Degranulating Peptide (CAS 83856-13-7)
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