5-Amino-2-((4-aminophenyl)amino)benzenesulfonic acid CAS 119-70-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 119-70-0 |
| Molecular Formula | C12H13N3O3S |
| Molecular Weight | 279.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Amino-2-((4-aminophenyl)amino)benzenesulfonic acid (CAS 119-70-0) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H13N3O3S. Molecular weight: 279.31 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H13N3O3S |
| Molecular Weight | 279.31 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 3-Amino-4-methoxy-N-(pyridin-3-yl)benzene-1-sulfonamide (CAS 1041546-42-2)
- 2-(3-Amino-4,6-dimethylthieno[2,3-b]pyridine-2-carboxamido)acetic acid (CAS 128918-14-9)
- Ethyl 2-((3-amino-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetate (CAS 177592-08-4)
- 2-(2-Amino-4-oxo-4,5-dihydrothiazol-5-yl)-N-(4-methoxyphenyl)acetamide (CAS 54819-74-8)
- 2-Amino-4-(3,4-dimethoxyphenyl)thiophene-3-carboxylic acid (CAS 899690-79-0)
- (R)-4-(2-Amino-9H-purin-9-yl)-2-(hydroxymethyl)butyl acetate (CAS 120687-07-2)
- 1-Amino-3-(pyrimidin-5-yl)-8H-indeno[1,2-c]thiophen-8-one (CAS 1245739-75-6)
- 4-Amino-7-((2-hydroxyethoxy)methyl)-6-(methylthio)-7H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile (CAS 127945-87-3)
Recommended Standards
- 2-((2-Fluoro-4-methylphenyl)carbamoyl)cyclohexanecarboxylic acid (CAS 1154570-99-6)
- 2-(6-Methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-N-(thiophen-2-ylmethyl)acetamide (CAS 1203200-33-2)
- tert-Butyl tetrahydro-[1,3,2]dioxathiolo[4,5-c]pyridine-5(4H)-carboxylate 2,2-dioxide (CAS 1123305-07-6)
- (5-BRomo-6-phenyl-1H-pyrazolo[3,4-b]pyridin-3-yl) cyclopropane carboxamide (CAS 583038-29-3)
- (2-Aminonaphthalen-1-yl)(phenyl)methanone (CAS 116400-82-9)
- 4-Bromo-6-methoxyquinoline-3-carboxylic acid ethyl ester (CAS 872714-50-6)
- 2,3,6-Trifluorobenzonitrile (CAS 136514-17-5)
- 5-Nitro-2,6-dioxohexahydropyrimidine-4-carboxylic acid (CAS 791006-71-8)
- tert-butyl N-(4-iodobutyl)carbamate (CAS 262278-40-0)
- Peptide Impurity 82 (CAS 10491-78-8)
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