Finasteride Impurity 49 CAS CATO-C4X-164549
| CAS No. | CATO-C4X-164549 |
| Molecular Formula | C26H44N2O4 |
| Molecular Weight | 448.64 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.
Finasteride Impurity 49 (CAS CATO-C4X-164549) is a certified pharmaceutical impurity reference standard with the molecular formula C26H44N2O4 and a molecular weight of 448.64 g/mol.
Structurally, Finasteride Impurity 49 (C26H44N2O4) 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 448.64 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C26H44N2O4 |
| Molecular Weight | 448.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Finasteride Standards
- Finasteride Impurity 48 (CAS CATO-C4X-164548)
- Finasteride Impurity 50 (CAS CATO-C4X-164550)
- Finasteride Impurity 52 (CAS CATO-C4X-164552)
- Finasteride Impurity 62 (CAS CATO-C4X-164562)
- Finasteride Impurity 42 (CAS 116285-38-2)
- Finasteride Impurity 16 (CAS 116285-41-7)
- Finasteride Carboxylic Acid (CAS 116285-37-1)
- Finasteride Impurity 53 (CAS CATO-C4X-164553)
Recommended Standards
- Oseltamivir Impurity 115 (CAS CATO-C4X-1720115)
- Loxoprofen impurity 101 (CAS CATO-C4X-1488101)
- Oseltamivir Impurity 13 (CAS CATO-C4X-172013)
- Spironolactone EP Impurity D (CAS 3079028-52-4)
- CAS 62780-92-1 (CAS 62780-92-1)
- Empagliflozin Impurity 87 (CAS CATO-C4X-1065287)
- Dotinurad Impurity 202 (CAS CATO-C4X-2494202)
- 2,2-BIs(trifluoromethyl)-4,5-dichloro-4,5-difluoro-1,3-dioxolane (CAS 60644-92-0)
- N-(3-bromophenyl)-2-chloropropanamide (CAS 882323-12-8)
- 2,2,4,4,6,6-Hexamethylheptane (CAS 34701-49-0)
- 2-((5-Amino-4-methyl-4h-1,2,4-triazol-3-yl)thio)-N-(pentan-3-yl)acetamide (CAS 1147762-53-5)
- 1-(7-Chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)cyclopropan-1-ol (CAS 2387601-76-3)
- Ethyl 5-(trifluoromethyl)isoxazole-4-carboxylate (CAS 1341552-49-5)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
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