Famotidine impurity 63 CAS CATO-C4X-139263
| CAS No. | CATO-C4X-139263 |
| Molecular Formula | C3H8ClN3O2S |
| Molecular Weight | 185.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Famotidine impurity 63 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.
Famotidine impurity 63 (CAS CATO-C4X-139263) is a certified pharmaceutical impurity reference standard with the molecular formula C3H8ClN3O2S and a molecular weight of 185.63 g/mol.
Based on its molecular formula C3H8ClN3O2S, Famotidine impurity 63 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 185.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C3H8ClN3O2S |
| Molecular Weight | 185.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Famotidine Standards
- Famotidine Impurity 45 (CAS 1644079-90-2)
- Famotidine Impurity 54 (CAS CATO-C4X-139254)
- Famotidine Impurity 78 (CAS 88068-99-9)
- Famotidine Impurity 79 (CAS CATO-C4X-139279)
- Famotidine Impurity 50 (CAS 95853-51-3)
- Famotidine impurity 69 (CAS 850864-53-8)
- Famotidine Impurity 02 (CAS 81152-53-6)
- Famotidine Impurity 27 (CAS 1378820-83-7)
Recommended Standards
- Tizanidine impurity 34 (CAS CATO-C4X-144534)
- Tizanidine EP Impurity E (CAS 30536-19-7)
- 5-Chlorobenzo[d]isothiazol-3(2H)-one (CAS 4337-43-3)
- Capivasertib Impurity 45 (CAS CATO-C4X-331245)
- Ticagrelor Impurity 143 (CAS 274693-53-7)
- Candesartan Cilexetil Impurity 44 (CAS CATO-C4X-123444)
- Topiramate Impurity 34 (CAS CATO-C4X-176834)
- 3-(Aminomethyl)-1-benzylpyrrolidin-3-amine (CAS 871116-13-1)
- 1,2,6-Trimethylpiperazine (CAS 4204-16-4)
- 1H-Pyrano[3,2-d]pyrimidine (CAS 35760-28-2)
- 2-(2,3-Dichlorophenyl)thiazole-4-carboxylic acid (CAS 257876-07-6)
- 1-(1H-Imidazol-1-yl)-2-methoxyethan-1-one (CAS 31059-08-2)
- [4-(4-chlorophenyl)-5-methyl-1,3-thiazol-2-yl]methanamine hydrochloride (CAS 1209383-22-1)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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