4-Fluoro-3-nitrobenzenesulfonic acid CAS 3888-84-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3888-84-4 |
| Molecular Formula | C6H4FNO5S |
| Molecular Weight | 221.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Fluoro-3-nitrobenzenesulfonic acid (CAS 3888-84-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C6H4FNO5S. Molecular weight: 221.16 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C6H4FNO5S |
| Molecular Weight | 221.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 5-((2,2-Difluoroethoxy)methyl)-1-methyl-3-nitro-1H-pyrazole (CAS 1328640-88-5)
- 4-Hydroxy-3-nitrobenzene-1-sulfonyl fluoride (CAS 349-05-3)
- Levofloxacin impurity 75 (CAS CATO-C4X-137175)
- 6-Methoxy-2,2-bis(trifluoromethyl)-2H-chromene (CAS 609346-81-8)
- 5-Amino-2-(3-chlorophenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 54178-29-9)
- (3-(2-Chlorophenyl)-1,2,4-Oxadiazol-5-Yl)Methanol (CAS 188878-36-6)
- Methyl 1-ethyl-1H-pyrrole-3-carboxylate (CAS 1330751-71-7)
- 4,5-Dihydro-1H-indazol-6(7H)-one (CAS 74197-19-6)
- 2,5-Dimethyl-1-[4-(propan-2-yl)phenyl]-1h-pyrrole-3-carboxylic acid (CAS 923821-08-3)
- Des-His(1)-Semaglutide (CAS CATO-C4X-2226216)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com