Promethazine Impurity 28 CAS 36144-72-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 36144-72-6 |
| Molecular Formula | C12H8N2OS |
| Molecular Weight | 228.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Promethazine Impurity 28 (CAS 36144-72-6), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C12H8N2OS. Molecular weight: 228.27 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C12H8N2OS |
| Molecular Weight | 228.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Promethazine Standards
- Promethazine Impurity 30 (CAS 3568-81-8)
- Promethazine Impurity 16 (CAS CATO-C4X-141816)
- Promethazine Impurity 27 (CAS 1209-66-1)
- Promethazine Impurity 29 (CAS 20962-92-9)
- Promethazine Impurity 7 (CAS 15375-48-1)
- Promethazine impurity 58 (CAS CATO-C4X-141858)
- Promethazine Impurity 53 (CAS CATO-C4X-141853)
- Promethazine Impurity 39 (CAS 857523-80-9)
Recommended Standards
- (4-Oxo-2-pyrrolidin-1-yl-4,5-dihydro-thiazol-5-yl)-acetic acid 0435AF 842976-95-8 C9H12N2O3S (CAS 842976-95-8)
- Methylene blue /Methylthioninium Chloride Impurity 20 (CAS 3773-36-2)
- 436855-68-4 3-[5-Oxo-1-(prop-2-en-1-yl)-2-sulfanylideneimidazolidin-4-yl]propanoic acid DTXSID90389775 (CAS 436855-68-4)
- Imidapril Impurity 17 (CAS 157085-07-9(free base))
- Levosimendan Impurity 6 (CAS CATO-C4X-13086)
- 2-[1-(trifluoromethyl)cyclopropyl]ethan-1-amine (CAS 1369100-74-2)
- 6,8-Dichloro-N-(pyridin-4-yl)imidazo-[1,2-b]pyridazine-3-carboxamide (CAS 1177415-93-8)
- N-Benzyl-5-bromopyrimidin-2-amine (CAS 38373-55-6)
- Ethyl 1-(3-chlorophenyl)-1H-1,2,3-triazole-4-carboxylate (CAS 950271-98-4)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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