Medroxyprogesterone impurity 11 CAS 2128317-86-0
| CAS No. | 2128317-86-0 |
| Molecular Formula | C31H41NO4 |
| Molecular Weight | 491.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Medroxyprogesterone impurity 11 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.
As a process- or degradation-related impurity, Medroxyprogesterone impurity 11 (CAS 2128317-86-0, C31H41NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Medroxyprogesterone impurity 11 (C31H41NO4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C31H41NO4 |
| Molecular Weight | 491.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
Related Medroxyprogesterone Standards
- Medroxyprogesterone Impurity 14 (CAS CATO-C4X-145714)
- Medroxyprogesterone Acetate Impurity 7 (CAS 28018-91-9)
- Medroxyprogesterone Acetate EP Impurity A (CAS 984-47-4)
- Medroxyprogesterone Impurity N1 (CAS 16319-93-0)
- Medroxyprogesterone impurity 8 (CAS 136803-81-1)
- Medroxyprogesterone Acetate Impurity 19 (CAS 71315-38-3)
- Medroxyprogesterone Acetate EP Impurity F (CAS 69688-15-9)
- Medroxyprogesterone Acetate EP Impurity D (CAS 2242-65-1)
Recommended Standards
- Ursodeoxycholic Acid impurity 81 (CAS CATO-C4X-142281)
- Bilastine impurity 119 (CAS 202189-79-5)
- Mifepristone Impurity 12 (CAS 84371-64-2)
- N-(4-butylphenyl)-2-((3-ethyl-4-oxo-7-(p-tolyl)-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1223820-36-7)
- Trimebutine Impurity N4 HCl (CAS 104743-23-9)
- Sitagliptin Phosphate Monohydrate EP Impurity B (CAS 1345822-87-8)
- Avanafil Impurity 43 (CAS 330785-81-4)
- Bis-CH2-PEG2-acid (CAS 2250056-38-1)
- 2-Chloro-N-(4-((4-nitrophenyl)thio)phenyl)acetamide (CAS 62292-40-4)
- 5-Hydrazinyl-1H-benzo[d]imidazole (CAS 53068-47-6)
- Ethyl 6-fluoro-4-hydroxy-8-(trifluoromethyl)quinoline-3-carboxylate (CAS 1065102-32-0)
- 2,3-Dihydrospiro[indene-1,4'-piperidine] hydrochloride, 97% (CAS 96651-85-3)
- N-Benzyl-N-(piperidin-4-ylmethyl)ethanamine (CAS 548769-06-8)
- Semaglutide impurity 289 (CAS CATO-C4X-2226289)
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