Medroxyprogesterone Acetate EP Impurity I CAS CATO-C4X-14573
| CAS No. | CATO-C4X-14573 |
| Molecular Formula | C22H32O3 |
| Molecular Weight | 344.49 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.
Medroxyprogesterone Acetate EP Impurity I (CAS CATO-C4X-14573) is a certified pharmaceutical impurity reference standard with the molecular formula C22H32O3 and a molecular weight of 344.49 g/mol.
Based on its molecular formula C22H32O3, Medroxyprogesterone Acetate EP Impurity I contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 344.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C22H32O3 |
| Molecular Weight | 344.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Medroxyprogesterone Standards
- Medroxyprogesterone Impurity N3 (CAS 13254-82-5)
- Medroxyprogesterone (CAS 520-85-4)
- Medroxyprogesterone impurity 10 (CAS 15399-87-8)
- Medroxyprogesterone impurity 9 (CAS 14510-23-7)
- Medroxyprogesterone Acetate Impurity 6 (CAS 1097-51-4)
- Medroxyprogesterone Acetate EP Impurity H (CAS 302-23-8)
- Medroxyprogesterone Impurity N2 (CAS 77881-13-1)
- Medroxyprogesterone Impurity 13 (CAS CATO-C4X-145713)
Recommended Standards
- Spironolactone Impurity 19 (CAS CATO-C4X-134519)
- Progesterone Impurity 46 (CAS CATO-C4X-150246)
- Dutasteride EP Impurity B (CAS 2512195-98-9)
- Progesterone Impurity 52 (CAS 14508-05-5)
- Linagliptin Impurity 80 (2-Piperidinamine) (CAS 45505-62-2)
- Dienogest EP Impurity D (CAS 190662-30-7)
- Tapentadol Impurity 18 (CAS CATO-C4X-209918)
- N-(3-bromophenyl)-N-tosylglycine (CAS 333450-24-1)
- Ethyl 2-amino-5-chloro-4-phenylthiophene-3-carboxylate (CAS 1313504-95-8)
- 2-(Boc-amino)pyrazolo[1,5-a]pyrimidine-3-carboxylic Acid (CAS 1383056-73-2)
- 6,13-Dibromo-1,3,4,4a,5,13c-hexahydro-2H-indeno[2,1-d]fluorene-9,10-diol (CAS 815610-52-7)
- n-[1-(propan-2-yl)piperidin-4-yl]acetamide (CAS 1030576-14-7)
- Quinoline HCl (CAS 530-64-3)
- D-[Asp]9-Semaglutide (CAS CATO-CPTD788631)
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