Belzutifan Impurity 1 CAS CATO-C4X-33941
| CAS No. | CATO-C4X-33941 |
| Molecular Formula | C17H11F4NO3S |
| Molecular Weight | 385.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Belzutifan Impurity 1 is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Belzutifan Impurity 1 (CAS CATO-C4X-33941) is a certified pharmaceutical impurity reference standard with the molecular formula C17H11F4NO3S and a molecular weight of 385.33 g/mol.
Based on its molecular formula C17H11F4NO3S, Belzutifan Impurity 1 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 385.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 Belzutifan Impurity 1 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 | C17H11F4NO3S |
| Molecular Weight | 385.33 g/mol |
| Purity | 95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Belzutifan Standards
Recommended Standards
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- Methyl 2-(((tert-butoxycarbonyl)amino)methyl)-5-methyloxazole-4-carboxylate (CAS 851372-22-0)
- Methyl 1-(difluoromethyl)-1H-pyrazole-3-carboxylate (CAS 1310351-03-1)
- tert-Butyl 4-(4-Methyl-1-piperazinyl)-2-[(4-tetrahydropyranyl)amino]benzoate (CAS 1034975-40-0)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
Why CATO?
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