Clofazimine Impurity 3 CAS 90712-89-3
| CAS No. | 90712-89-3 |
| Molecular Formula | C24H15Cl2N3O |
| Molecular Weight | 432.30 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.
Clofazimine Impurity 3 (CAS 90712-89-3) is a certified pharmaceutical impurity reference standard with the molecular formula C24H15Cl2N3O and a molecular weight of 432.30 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Clofazimine Impurity 3 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 432.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 manufactures Clofazimine Impurity 3 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 | C24H15Cl2N3O |
| Molecular Weight | 432.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Clofazimine Standards
- Clofazimine Impurity 26 (CAS CATO-C4X-207126)
- Clofazimine Impurity 28 (CAS CATO-C4X-207128)
- Clofazimine Impurity 29 (CAS CATO-C4X-207129)
- Clofazimine EP Impurity A (CAS 102262-55-5)
- Clofazimine Impurity 9 (CAS 96762-04-8)
- Clofazimine Impurity 14 (CAS CATO-C4X-207114)
- Clofazimine Impurity 17 (CAS CATO-C4X-207117)
- Clofazimine Impurity 2 (CAS 2158184-11-1)
Recommended Standards
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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