Famotidine Impurity 11 CAS 90237-03-9
| CAS No. | 90237-03-9 |
| Molecular Formula | C8H15N7O3S3 |
| Molecular Weight | 353.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO supplies Famotidine Impurity 11 (CAS 90237-03-9), a pharmacopoeial impurity reference standard (molecular formula C8H15N7O3S3, MW 353.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C8H15N7O3S3, Famotidine Impurity 11 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 353.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Famotidine Impurity 11 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 | C8H15N7O3S3 |
| Molecular Weight | 353.44 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Famotidine Standards
- Famotidine EP Impurity I (CAS 1020719-36-1)
- Famotidine Impurity 32 (CAS 154754-59-3)
- Famotidine-d4 (Major) (CAS CATO-C4X-139217)
- Famotidine-13C-d3 (CAS 2744683-81-4)
- Famotidine Impurity 56 (CAS CATO-C4X-139256)
- Famotidine Impurity 57 (CAS CATO-C4X-139257)
- Famotidine impurity 59 (CAS CATO-C4X-139259)
- Famotidine-13C3 (CAS 1185241-48-8)
Recommended Standards
- Conivaptan Impurity 8 (CAS 717917-14-1)
- Lesinurad Impurity 6 (CAS CATO-C4X-14786)
- N-nitroso-dorzolamide (CAS CATO-C4X-122820)
- Abrocitinib Impurity 52 (CAS CATO-C4X-288452)
- Tazobactam lmpurity 29 (CAS 80353-26-0)
- Paliperidone impurity 146 (CAS CATO-C4X-1724146)
- Amphotericin B Impurity 8 (CAS CATO-C4X-18448)
- 2-Methyl-3-(4-methylpiperazin-1-yl)propan-1-ol (CAS 110358-10-6)
- 6-Methylpyridazine-3-carboximidamide acetate (CAS 1609406-73-6)
- 4-(4-Ethoxyphenyl)-5-(4-pyridinyl)-4h-1,2,4-triazole-3-thiol (CAS 111290-75-6)
- 2-(7-Bromo-2-methyl-1H-indol-3-yl)ethanamine (CAS 299439-05-7)
- 4,16a-Dibromoestrone (CAS 81072-41-5)
- 3-Methyl-2-phenylquinoline (CAS 5278-43-3)
- Eosinophilotactic Peptide (CAS 61756-28-3)
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