Rupatadine Impurity 21 CAS 1007089-84-0
| CAS No. | 1007089-84-0 |
| Molecular Formula | C7H8ClN |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Rupatadine Impurity 21 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.
As a process- or degradation-related impurity, Rupatadine Impurity 21 (CAS 1007089-84-0, C7H8ClNHCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrile group, chlorine substitution, Rupatadine Impurity 21 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 178.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C7H8ClN HCl |
| Molecular Weight | 178.06 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Rupatadine Standards
- Rupatadine Impurity 24 (CAS 100910-66-5)
- Rupatadine Impurity 3 (CAS 102074-19-1)
- Rupatadine impurity 1 (CAS 1118754-56-5)
- Rupatadine impurity 14 (CAS 1210824-61-5)
- Rupatadine EP Impurity C (CAS 1224515-72-3)
- Rupatadine Impurity 4 (CAS 1235342-53-6)
- Rupatadine EP Impurity A (CAS 1354055-68-7)
- Rupatadine Impurity 20 (CAS 1422960-88-0)
Recommended Standards
- Mabuterol Impurity 5 (CAS CATO-C4X-14545)
- Betamethasone Impurity 32 (CAS CATO-C4X-147432)
- Baloxavir Impurity 110 (CAS CATO-C4X-2108110)
- 5-Bromo-2-(trifluoromethyl)isonicotinamide (CAS 1070892-03-3)
- (S)-2-AMINO-3-(4-BROMO-3-FLUOROPHENYL)PROPANOIC ACID HCL (CAS 1270105-47-9)
- Chloro[2-[6-[1-(methoxy-κO)-1-methoxyethyl]-2-pyridinyl-κN]-2-oxoethyl-κC]palladium (CAS 1236276-84-8)
- 3-Bromo-6-methylbenzene-1,2-diamine (CAS 344595-73-9)
- 2-(Difluoromethyl)-4-nitropyridine-3-methanol (CAS 1805331-78-5)
- 2-Amino-5-(methylthio)pyridine (CAS 77618-99-6)
- D-Pro31-Tirzepatide (CAS CATO-CPTD788905)
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