Finasteride Impurity 36 CAS CATO-C4X-164536
| CAS No. | CATO-C4X-164536 |
| Molecular Formula | C20H31NO2 |
| Molecular Weight | 317.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Finasteride Impurity 36.
CATO supplies Finasteride Impurity 36 (CAS CATO-C4X-164536), a pharmacopoeial impurity reference standard (molecular formula C20H31NO2, MW 317.47 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Finasteride Impurity 36 (C20H31NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 317.47 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), Finasteride Impurity 36 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H31NO2 |
| Molecular Weight | 317.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >97% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Finasteride Standards
- Finasteride Impurity 31 (CAS 1667725-37-2)
- Finasteride Impurity 34 (CAS 73711-89-4)
- Finasteride Impurity N50 (CAS 10325-79-8)
- Finasteride Impurity 32 (CAS 51872-67-4)
- Finasteride Impurity 33 (CAS 35498-66-9)
- Finasteride Impurity 43 (CAS 104214-61-1)
- Finasteride Impurity 14 (CAS 302-97-6)
- Finasteride Impurity 23 (CAS CATO-C4X-164523)
Recommended Standards
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- Montelukast Impurity 59 (CAS CATO-C4X-103159)
- Irinotecan Impurity 62 (CAS CATO-C4X-166762)
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Why CATO?
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