Pigment Red 57 CAS 5281-04-9
Purity >80%In StockPharmaceutical Standards
| CAS No. | 5281-04-9 |
| Molecular Formula | C18H12N2O6S Ca |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pigment Red 57 (CAS 5281-04-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C18H12N2O6S Ca. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C18H12N2O6S Ca |
| Molecular Weight | 424.44 g/mol |
| Purity | >80% |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Pigment Standards
Recommended Standards
- (S)-Ethyl 2-amino-5-cyanopentanoate (CAS 763883-57-4)
- 1,1'-(9-(2-(Isopropylamino)ethyl)-9H-carbazole-3,6-diyl)diethanone hydrochloride (CAS 1197397-89-9)
- 4-Chloro-2-(2-fluoro-phenyl)-6-methyl-quinazoline (CAS 885277-53-2)
- Azelastine-d3 (CAS 758637-88-6)
- [(Methylthio)[[2-nitro-5-(propylthio)phenyl]amino]methylene]carbamic Acid Methyl Ester (CAS 88255-00-9)
- Methyl (tetrahydro-2H-pyran-4-yl)glycinate (CAS 1156837-33-0)
- Peptide Impurity 15 (CAS 1227750-69-7)
Why CATO?
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