4-Amino-5-methoxy-2-methylbenzenesulfonic Acid CAS 6471-78-9
Purity >95%In StockPharmaceutical Standards
| CAS No. | 6471-78-9 |
| Molecular Formula | C8H11NO4S |
| Molecular Weight | 217.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Amino-5-methoxy-2-methylbenzenesulfonic Acid (CAS 6471-78-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C8H11NO4S. Molecular weight: 217.24 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C8H11NO4S |
| Molecular Weight | 217.24 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 3-Amino-4H-thieno[3,4-c]chromen-4-one (CAS 41078-15-3)
- 5-Amino-2-ethoxybenzenesulfonic acid (CAS 6375-02-6)
- 2-Amino-1,3,5-triazino[1,2-a]benzimidazole-4(3H)-thione (CAS 78650-21-2)
- 3-Amino-4H-benzo[4,5]thiazolo[3,2-a]pyrimidin-4-one (CAS 216976-08-8)
- 7-Amino-4-(methylthio)pyrido[2,3-d]pyrimidine-6-carbonitrile (CAS 7154-40-7)
- 5-Amino-1-(o-tolyl)-1H-1,2,3-triazole-4-carboxamide (CAS 103272-42-0)
- 5-Amino-1-(3-methylphenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 103274-40-4)
- N-[(3-Amino-1H-1,2,4-triazol-5-yl)methyl]benzamide (CAS 110181-51-6)
Recommended Standards
- Levocabastine EP Impurity H (CAS CATO-C4X-22898)
- [1,3]thiazolo[4,5-b]quinoxaline-2,7-diamine (CAS 103593-98-2)
- Torasemide impurity 37 (CAS CATO-C4X-183637)
- 2-Bromonaphthalene-1,2,3,4,4a,8a-13C6 (CAS 1262053-54-2)
- N-Cycloheptyl-p-amino benzoicacid (CAS 69294-34-4)
- Methyl 3-((dimethylamino)methyl)-5-methoxy-1H-pyrrolo[2,3-c]pyridine-2-carboxylate (CAS 1432322-93-4)
- cis-3-Methyl-2-pentene (CAS 922-62-3)
- Crisaborole Impurity 139 (CAS CATO-C4X-2021139)
- (rac./meso)-Astaxanthin dipalmitate (CAS 112421-21-3)
- Des-Ile17-Tirzepatide (CAS CATO-CPTD788956)
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