2-(phenothiazin-3-ylideneamino)benzene-1,4-disulfonic acid CAS 178861-30-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 178861-30-8 |
| Molecular Formula | C18H12N2O6S3 |
| Molecular Weight | 448.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(phenothiazin-3-ylideneamino)benzene-1,4-disulfonic acid (CAS 178861-30-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H12N2O6S3. Molecular weight: 448.49 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H12N2O6S3 |
| Molecular Weight | 448.49 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
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Recommended Standards
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- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (4-(3,5-difluorophenyl)thiazol-5-yl)boronate (CAS 2223050-83-5)
- 2-(4-bromo-3-methylphenyl)-2-methylpropanoic acid (CAS 1314745-40-8)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
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