4-Mercapto-3-nitrobenzoic acid CAS 58123-76-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 58123-76-5 |
| Molecular Formula | C7H5NO4S |
| Molecular Weight | 199.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Mercapto-3-nitrobenzoic acid (CAS 58123-76-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H5NO4S. Molecular weight: 199.18 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H5NO4S |
| Molecular Weight | 199.18 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-Hydroxybenzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 80563-77-5)
- Ethyl 2-((5-fluoropyridin-2-yl)oxy)acetate (CAS 777-88-8)
- 4-Fluoro-2-isopropoxy-1-nitrobenzene (CAS 28987-46-4)
- 2-Bromo-1-(2-(octylamino)-1H-imidazol-4-yl)ethanone (CAS 88723-46-0)
- 1-[(1-ethyl-3,5-dimethyl-1h-pyrazol-4-yl)sulfonyl]piperidine-4-carboxylic acid (CAS 925200-03-9)
- (2,3-Dichloro-6-fluorophenyl)(methyl)sulfane (CAS 1803820-09-8)
- HS-27 (CAS 1562024-11-6)
- 3,8-Dimethoxy-4-methylbenzo[g]quinoline-5,10-dione (CAS 143704-03-4)
- Methyl 2-chloro-6-(3-chloropropyl)pyrimidine-4-carboxylate (CAS 1399653-59-8)
- D-allo-Thr5-Semaglutide (CAS CATO-C4X-2226243)
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