5-Chloro-2-(2-((5-chloro-3-methylbenzo[d]thiazol-2(3H)-ylidene)methyl)but-1-en-1-yl)-3-methylbenzo[d]thiazol-3-ium 4-methylbenzenesulfonate CAS 82539-25-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 82539-25-1 |
| Molecular Formula | C21H19Cl2N2S2 C7H7O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-2-(2-((5-chloro-3-methylbenzo[d]thiazol-2(3H)-ylidene)methyl)but-1-en-1-yl)-3-methylbenzo[d]thiazol-3-ium 4-methylbenzenesulfonate (CAS 82539-25-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H19Cl2N2S2 C7H7O3S. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H19Cl2N2S2 C7H7O3S |
| Molecular Weight | 605.61 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
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Recommended Standards
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- Ethosuximide impurity 18 (CAS CATO-C4X-262518)
- methyl (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-sulfanyl-propanoate (CAS 1410792-50-5)
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