Roxatidine Impurity 21 CAS 108441-34-5
| CAS No. | 108441-34-5 |
| Molecular Formula | C17H25ClN2O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H25ClN2O2HCl, Roxatidine Impurity 21 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 361.31 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.
CATO supplies Roxatidine Impurity 21 (CAS 108441-34-5), a pharmacopoeial impurity reference standard (molecular formula C17H25ClN2O2HCl, MW 361.31 g/mol) used for the identification and quantification of trace impurities in APIs.
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 Roxatidine 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.
Physical & Chemical Properties
| Molecular Formula | C17H25ClN2O2 HCl |
| Molecular Weight | 361.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Roxatidine Standards
- Roxatidine Impurity 43 (CAS 100-83-4)
- Roxatidine Impurity 55 (CAS 100841-00-7)
- Roxatidine Hemioxalate (CAS 110925-92-3)
- Roxatidine Impurity 58 (CAS 115062-97-0)
- Roxatidine Impurity 56 (CAS 132513-51-0)
- Roxatidine Impurity 34 (CAS 15504-60-6)
- Roxatidine Impurity 3 (CAS 195621-06-8)
- Roxatidine impurity 67 (CAS 2765350-61-4)
Recommended Standards
- Ribavirin Impurity 52 (CAS 3641-13-2)
- Lidocaine Impurity 68 (CAS CATO-C4X-167968)
- Rasagiline Impurity 39 (CAS CATO-C4X-191339)
- 2-((3-Cyano-6-methyl-4-phenyl-5,6,7,8-tetrahydro-1,6-naphthyridin-2-yl)thio)-N-(3,4-dimethoxyphenyl)acetamide (CAS 327067-16-3)
- 4-Amino-N,N-dimethyl-1H-imidazole-5-carboximidamide (CAS 960326-64-1)
- 2-Fluoro-5-(trifluoromethyl)benzaldehyde (CAS 146137-78-2)
- (2-((4-((2-Ethylhexyl)oxy)phenyl)dimethylsilyl)phenyl)methanol (CAS 1266252-12-3)
- Bezafibrate Impurity 7 (CAS CATO-C4X-20177)
- 2-Amino-4-oxo-3,4-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid (CAS 80360-06-1)
- Insulin degludec (CAS 844439-96-9)
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