Promethazine EP Impurity C (R-Isomer) CAS CATO-C3D-262692
| CAS No. | CATO-C3D-262692 |
| Molecular Formula | C16H18N2S |
| Molecular Weight | 270.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 270.39 g/mol gives Promethazine EP Impurity C (R-Isomer) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Promethazine EP Impurity C (R-Isomer) (CAS CATO-C3D-262692), a pharmacopoeial impurity reference standard (molecular formula C16H18N2S, MW 270.39 g/mol) used for the identification and quantification of trace impurities in APIs.
Promethazine EP Impurity C (R-Isomer) (C16H18N2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Promethazine EP Impurity C (R-Isomer) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H18N2S |
| Molecular Weight | 270.39 g/mol |
| Purity | 95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Promethazine Standards
- Promethazine EP Impurity C (CAS 37707-23-6)
- Promethazine Impurity 1 (CAS 1220-99-1)
- Promethazine impurity 60 (CAS CATO-C4X-141860)
- Promethazine Impurity 2 (CAS 1217-37-4)
- Promethazine impurity 59 (CAS CATO-C4X-141859)
- Promethazine EP Impurity B (CAS 303-14-0)
- Promethazine Impurity 39 (CAS 857523-80-9)
- Promethazine Impurity 38 (CAS CATO-C4X-141838)
Recommended Standards
- 898780-79-5 1-(4-Methylphenyl)-3-[4-(methylsulfanyl)phenyl]propan-1-one DTXSID80644360 (CAS 898780-79-5)
- Ticagrelor impurity 102 (CAS CATO-C4X-1093102)
- Suprofen (200 mg) (CAS 40828-46-4)
- Acotiamide Impurity 5 (CAS 206882-15-7)
- Budesonide Impurity 35 (CAS 3079028-41-1)
- Phenylephrine Impurity 34 (CAS CATO-C4X-146734)
- Salbutamol Impurity 204 (CAS CATO-C4X-1176204)
- N-Nitroso Lansoprazole EP Impurity C (CAS CATO-C4X-111357)
- 3-(2H-1,2,3-triazol-2-yl)propan-1-amine hydrochloride (CAS 4332-69-8)
- H-Gly-Phe-NH? (CAS 1510-04-9)
- tert-Butyl (1S,9S)-9-amino-6,10-dioxooctahydro-6H-pyridazino[1,2-a][1,2]diazepine-1-carboxylate (CAS 88767-96-8)
- Isopregnanolone-d4 Sulfate Triethylamine Salt (CAS 215996-51-3 (non-labelled))
- Ethyl 6-methylimidazo[1,2-a]pyrimidine-2-carboxylate (CAS 1699047-50-1)
- Protein Kinase C (alpha) Peptide (CAS 159939-84-1)
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 18665070610 / Nicole.chen@cato-chem.com