4-Amino-5-hydroxy-3-((4-nitrophenyl)diazenyl)-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid CAS 3121-74-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3121-74-2 |
| Molecular Formula | C22H16N6O9S2 |
| Molecular Weight | 572.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Amino-5-hydroxy-3-((4-nitrophenyl)diazenyl)-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid (CAS 3121-74-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C22H16N6O9S2. Molecular weight: 572.53 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C22H16N6O9S2 |
| Molecular Weight | 572.53 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Amino Standards
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Recommended Standards
- 1-(Perfluorohexyl)octadecane (CAS 154628-01-0)
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- 4,5-Dichloro-6-fluoropyrimidine (CAS 30679-87-9)
- rac Naproxen-d3 Methyl Ester (CAS 1189511-76-9)
- 2-(2-Phenylmethoxyphenoxy)ethanol (CAS 75863-78-4)
- 3-(3,4-dichlorophenyl)-3-methyloxolane-2,5-dione (CAS 1094333-89-7)
- 7,8-Dimethoxy-1,2-dihydrophthalazin-1-one (CAS 4821-89-0)
- Tirzepatide Impurity 33 (CAS CATO-C4X-324033)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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