Rupatadine EP Impurity C CAS 1224515-72-3
| CAS No. | 1224515-72-3 |
| Molecular Formula | C45H43Cl2N5 |
| Molecular Weight | 724.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Rupatadine EP Impurity C meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Rupatadine EP Impurity C (CAS 1224515-72-3), a pharmacopoeial impurity reference standard (molecular formula C45H43Cl2N5, MW 724.76 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Rupatadine EP Impurity C (C45H43Cl2N5) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 26.0, corresponding to approximately 26 ring(s) or double-bond equivalent(s). With a molecular weight of 724.76 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C45H43Cl2N5 |
| Molecular Weight | 724.76 g/mol |
| Purity | >90% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 26.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Rupatadine Standards
- Rupatadine EP Impurity A (CAS 1354055-68-7)
- Rupatadine Impurity 20 (CAS 1422960-88-0)
- Rupatadine Impurity 35 (CAS 1632412-57-7)
- Rupatadine Impurity 45 (CAS CATO-C4X-102745)
- Rupatadine Impurity 46 (CAS CATO-C4X-102746)
- Rupatadine Impurity 44 (CAS 732962-71-9)
- Rupatadine impurity 32 (CAS CATO-C4X-102732)
- Rupatadine Impurity 43 (CAS CATO-C4X-102743)
Recommended Standards
- N5,N5,N11,N11-Tetrakis(1-phenylethyl)-4,6,10,12-tetraoxa-5,11-diphosphadibenzo[ef,kl]heptalene-5,11-diamine (CAS 1229667-78-0)
- 5,5'-Dibromo-4,4'-bis(dodecylthio)-2,2'-bithiophene (CAS 2100265-59-4)
- Benzyl 2-(Acetylamino)-2-deoxy-3-O-[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl]-α-D-galactopyranoside 4,6-Diacetate (CAS 85054-28-0)
- 1,5-Bis([1,1':3',1''-terphenyl]-5'-ylmethoxy)anthracene-9,10-dione (CAS 807334-63-0)
- Vigabatrin Impurity 7 (CAS CATO-C4X-11967)
- Posaconazole Impurity 113 (CAS 2243786-07-2)
- Pentazocine Impurity 5 (CAS 18175-34-3)
- 2-Bromo-4,6-dimethylbenzo[d]thiazole, 97% (CAS 412923-48-9)
- 3-((4-Fluorophenyl)carbamoyl)-1,2,2-trimethylcyclopentane-1-carboxylic acid (CAS 304666-33-9)
- 4-[2-(2-Allylphenoxy)ethyl]piperidinehydrochloride (CAS 1219976-43-8)
- (2E)-1-[(4-Chlorophenyl)sulfanyl]-3-(4-ethoxyphenyl)prop-2-en-1-one (CAS 298217-85-3)
- 5-Methyl-5,10-dihydrophenazine (CAS 20057-16-3)
- 1,2,3,6,7-Pentamethoxy-9H-xanthen-9-one (CAS 64756-86-1)
- Ephrin-A2-Selective YSA-Peptide (CAS 532441-10-4)
Why CATO?
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