Famotidine Impurity 47 CAS CATO-C4X-139247
| CAS No. | CATO-C4X-139247 |
| Molecular Formula | C20H35N7O12S3 |
| Molecular Weight | 661.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Famotidine Impurity 47 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.
CATO supplies Famotidine Impurity 47 (CAS CATO-C4X-139247), a pharmacopoeial impurity reference standard (molecular formula C20H35N7O12S3, MW 661.73 g/mol) used for the identification and quantification of trace impurities in APIs.
Famotidine Impurity 47 (C20H35N7O12S3) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C20H35N7O12S3 |
| Molecular Weight | 661.73 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Famotidine Standards
- Famotidine Impurity 48 (CAS CATO-C4X-139248)
- Famotidine Impurity 77 (CAS CATO-C4X-139277)
- Famotidine EP Impurity B (CAS 89268-62-2)
- Famotidine impurity 64 (CAS CATO-C4X-139264)
- Famotidine impurity 72 (CAS 89167-37-3)
- Famotidine EP Impurity E (CAS 129083-44-9)
- Famotidine Impurity 56 (CAS CATO-C4X-139256)
- Famotidine Impurity 57 (CAS CATO-C4X-139257)
Recommended Standards
- Cefcanel Daloxate (CAS 97275-40-6)
- 2-({5-[3-(morpholine-4-sulfonyl)phenyl]-4-[4-(trifluoromethoxy)phenyl]-4h-1,2,4-triazol-3-yl}sulfanyl)-n-[4-(propan-2-yl)phenyl]acetamide (CAS 523983-93-9)
- Z-Phe-Leu-Glu-pNA (CAS 104634-10-8)
- 10-Hydroxy Aconitine (CAS 41849-35-8)
- Paricalcitol Impurity 27 (CAS 139356-35-7)
- Brivaracetam Impurity 182 (CAS CATO-C4X-2007182)
- Methotrexate impurity 56 (CAS CATO-C4X-115456)
- Ethyl 3-fluoro-6-(trifluoromethyl)picolinate (CAS 1806386-01-5)
- 1,1,1-Trifluoro-3-((4-methylpyrimidin-2-yl)thio)propan-2-ol (CAS 1343623-30-2)
- 1171922-03-4 1-(3-Methoxybenzyl)-1H-1,2,3-benzotriazole-6-carboxylic acid MFCD14281760 (CAS 1171922-03-4)
- Tert-butyl (2-((2,4-dichlorobenzyl)amino)ethyl)carbamate (CAS 1439823-61-6)
- Tetrabutylammonium perrhenate (CAS 16385-59-4)
- 1-(Tert-butylthio)-3-propylcyclobutane-1-carboxylic acid (CAS 1477719-70-2)
- Ac, Gastrin Releasing Peptide (20-27), porcine (CAS 77714-20-6)
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