Promethazine Impurity 61 CAS CATO-C4X-141861
| CAS No. | CATO-C4X-141861 |
| Molecular Formula | C15H12ClNOS |
| Molecular Weight | 289.78 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 289.78 g/mol gives Promethazine Impurity 61 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Promethazine Impurity 61 (CAS CATO-C4X-141861, C15H12ClNOS) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C15H12ClNOS, Promethazine Impurity 61 contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 289.78 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Promethazine Impurity 61 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 | C15H12ClNOS |
| Molecular Weight | 289.78 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Promethazine Standards
- Promethazine Impurity 65 (CAS CATO-C4X-141865)
- Promethazine Impurity 38 (CAS CATO-C4X-141838)
- Promethazine EP Impurity B (CAS 303-14-0)
- Promethazine impurity 55 (CAS CATO-C4X-141855)
- Promethazine sulfoxide HCl (CAS 5306-81-0)
- Promethazine Impurity 19 (CAS CATO-C4X-141819)
- Promethazine Impurity 36 (CAS CATO-C4X-141836)
- Promethazine EP Impurity D (CAS 7640-51-9)
Recommended Standards
- Lansoprazole Impurity 37 (CAS 103312-62-5)
- Asenapine-13C,d3 (CAS 1217729-73-1)
- N-[(6-Chloroimidazo[2,1-b][1,3]thiazol-5-yl)methylene](4-methylphenyl)methanamine (CAS 241132-52-5)
- 2-(((4-Butylphenyl)amino)methyl)-4-chlorophenol (CAS 1040083-23-5)
- Drotaverine Impurity 8 (CAS CATO-C4X-24358)
- Darolutamide Impurity 51 (CAS CATO-C4X-310651)
- Leuprorelin Impurity 64 (CAS CATO-C4X-182264)
- N-(sec-butyl)-4-methyl-2,6-dinitroaniline (CAS 866157-52-0)
- (S)-1-benzylpyrrolidine-3-carbonitrile (CAS 159063-16-8)
- 1-(4-Chlorophenyl)-3,4,-dibromopyrrole-2,5-dione (CAS 1237534-08-5)
- 4-(2-Chlorophenyl)-1,3-dimethyl-1h-pyrazol-5-amine (CAS 3654-23-7)
- 4-((2-Benzyl-6-((benzyloxy)carbonyl)phenoxy)(phenyl)methyl)-4-(benzyloxy)-4lambda5-benzoic acid (CAS 56442-22-9)
- 1-[(3,5-Dimethylisoxazol-4-yl)sulfonyl]proline (CAS 890169-54-7)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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