4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid CAS 119-19-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 119-19-7 |
| Molecular Formula | C16H13NO4S |
| Molecular Weight | 315.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid (CAS 119-19-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C16H13NO4S. Molecular weight: 315.34 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C16H13NO4S |
| Molecular Weight | 315.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
- 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid (CAS 119-40-4)
- 4-Hydroxy-6-(phenylamino)naphthalene-1-sulfonic acid (CAS 5345-77-7)
- 1-Ethyl-4-hydroxy-2-oxo-N-(thiazol-2-yl)-1,2-dihydroquinoline-3-carboxamide (CAS 167565-15-3)
- 4-Hydroxy-2-(1-hydroxyethyl)-N-(thiazol-2-yl)quinoline-3-carboxamide (CAS 89441-35-0)
- Methyl 4-((2-hydroxy-4-methoxybenzylidene)amino)-2-methoxybenzoate (CAS 477858-55-2)
- N-(3-Hydroxy-4-(hydroxymethyl)cyclopentyl)-2-(naphthalen-2-yloxy)acetamide (CAS 1421453-08-8)
- (9α,13α,14α)-4-Hydroxy-3,7-dimethoxy-7,8-didehydromorphinan-6-one (CAS 240131-71-9)
- 4-Hydroxy Trimethoprim-d9 (CAS 1794752-40-1)
Recommended Standards
- Methyl 1-(benzenesulfonyl)-1H-indole-3-carboxylate (CAS 116325-17-8)
- 1-Cyclopropyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carbaldehyde (CAS 110719-57-8)
- 3-[[(1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)oxy]methyl]-2,5-dihydro-2,2,5,5-tetramethyl-1H-pyrrol-1-yloxy (CAS 1214132-79-2)
- ethyl 5-(chlorosulfonyl)-2-methyl-3-nitrobenzoate (CAS 1154155-35-7)
- N-(2-methoxyphenyl)-2-(piperazin-1-yl)acetamide dihydrochloride (CAS 1282132-13-1)
- (R)-(+)-2-Chloropropionic Acid (CAS 7474-05-7)
- 2-(Chloromethyl)-4-(methylthio)benzo[d]oxazole (CAS 1806571-19-6)
- 6-BRomo-4-hydroxy-quinoline-3-carboxylic acid methyl ester (CAS 1593717-84-0)
- α-Cyano-α-ethyl-1-cyclohexene-1-acetic Acid Ethyl Ester (CAS 7146-80-7)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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