4-[(4-Amino-5-methoxy-2-methylphenyl)azo]benzenesulfonic acid CAS 40947-69-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 40947-69-1 |
| Molecular Formula | C14H15N3O4S |
| Molecular Weight | 321.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-[(4-Amino-5-methoxy-2-methylphenyl)azo]benzenesulfonic acid (CAS 40947-69-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C14H15N3O4S. Molecular weight: 321.35 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C14H15N3O4S |
| Molecular Weight | 321.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 1-Amino-4-(thiazol-2-ylamino)anthracene-9,10-dione (CAS 62593-03-7)
- Ethyl 4-(2-(2-amino-4-oxo-4,5-dihydrothiazol-5-yl)acetamido)benzoate (CAS 459421-35-3)
- 1-(4-Amino-1,2,5-oxadiazol-3-yl)-5-((cyclohexyl(methyl)amino)methyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 898097-57-9)
- 1-(4-Amino-1,2,5-oxadiazol-3-yl)-5-(azepan-1-ylmethyl)-1H-1,2,3-triazole-4-carbohydrazide (CAS 332391-13-6)
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- 3-Amino-2-{4-[(tert-butoxy)carbonyl]piperazin-1-yl}benzoic acid (CAS 904818-03-7)
Recommended Standards
- 4-[(2-methoxyphenyl)(methyl)sulfamoyl]benzoic acid (CAS 379255-57-9)
- 4-[4-(1-hydroxyethyl)benzenesulfonamido]benzoic acid (CAS 771499-99-1)
- 4-[(2-methoxybenzenesulfonamido)methyl]benzoic acid (CAS 793727-37-4)
- CIS-METHYL 1-BENZYL-4-(BOC-AMINO)PIPERIDINE-3-CARBOXYLATE (CAS 270257-50-6)
- 2,3,5,8-Tetrahydroxynaphthalene-1,4-dione (CAS 476-54-0)
- N-{1-[4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethyl}ethanesulfonamide (CAS 2246431-33-2)
- 1-(6-Phenylpyridazin-3-yl)piperidine-4-carboxylic acid (CAS 1017168-60-3)
- N,N-Dimethylanilinium Tetrakis(pentafluorophenyl)borate (CAS 118612-00-3)
- Dexamethasone Impurity 117 (CAS CATO-C4X-1165117)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
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