(E)-4-Hydroxy-3-((4-sulfonaphthalen-1-yl)diazenyl)naphthalene-1-sulfonic acid CAS 13613-55-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13613-55-3 |
| Molecular Formula | C20H14N2O7S2 |
| Molecular Weight | 458.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-4-Hydroxy-3-((4-sulfonaphthalen-1-yl)diazenyl)naphthalene-1-sulfonic acid (CAS 13613-55-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H14N2O7S2. Molecular weight: 458.46 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C20H14N2O7S2 |
| Molecular Weight | 458.46 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
- (2R,3S,4R)-2-((benzoyloxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl dibenzoate (CAS 13322-90-2)
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- 2-(6-(4-Fluorophenyl)-3-(3,4,5-trimethoxyphenyl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-7-yl)acetic acid (CAS 126598-11-6)
- n-(5-Nitrothiophen-3-yl)methanesulfonamide (CAS 1250326-89-6)
- 3-Methoxy-2-(propan-2-yloxy)benzaldehyde (CAS 75792-35-7)
- 1-(2,6-Dichlorophenyl)propan-1-ol (CAS 835925-30-9)
- 4-Nitrophenyl 2-acetamido-3-4-6-tri-O-acetyl-2-deoxy-α-D-glucopyranoside (CAS 13089-23-1)
- 1-(3-Phenylpropyl)cyclopropan-1-amine (CAS 1368709-11-8)
- (4-Chloro-5-(difluoromethyl)-2-methoxypyridin-3-yl)methanol (CAS 1804370-90-8)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
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