Famotidine Impurity 25 CAS 69014-12-6
| CAS No. | 69014-12-6 |
| Molecular Formula | C5H7ClN4S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Famotidine Impurity 25 is closely related to a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Famotidine Impurity 25 (CAS 69014-12-6), a pharmacopoeial impurity reference standard (molecular formula C5H7ClN4SHCl, MW 227.11 g/mol) used for the identification and quantification of trace impurities in APIs.
Famotidine Impurity 25 (C5H7ClN4SHCl) contains a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 manufactures Famotidine Impurity 25 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 | C5H7ClN4S HCl |
| Molecular Weight | 227.11 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Famotidine Standards
- Famotidine impurity HCl, >98% (CAS 100599-91-5)
- Famotidine EP Impurity I (CAS 1020719-36-1)
- Famotidine EP Impurity C (CAS 106433-44-7)
- Famotidine Impurity 23 (CAS 106649-95-0)
- Famotidine EP Impurity H (CAS 106649-96-1)
- Famotidine EP Impurity F (CAS 107880-74-0)
- Famotidine EP Impurity B Dimaleate (CAS 109467-08-5)
- Famotidine impurity 01 (CAS 1185040-73-6)
Recommended Standards
- Nizatidine EP Impurity I (CAS 82586-81-0)
- Suzetrigine Impurity 27 (CAS CATO-C4X-336927)
- Pitavastatin Impurity 22 (CAS CATO-C4X-103722)
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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