Medroxyprogesterone Impurity N3 CAS 13254-82-5
| CAS No. | 13254-82-5 |
| Molecular Formula | C22H32O3 |
| Molecular Weight | 344.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Medroxyprogesterone Impurity N3 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.
Medroxyprogesterone Impurity N3 (CAS 13254-82-5) is a certified pharmaceutical impurity reference standard with the molecular formula C22H32O3 and a molecular weight of 344.49 g/mol.
Owing to a steroid core, a hydroxyl group, an ether linkage, Medroxyprogesterone Impurity N3 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 344.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C22H32O3 |
| Molecular Weight | 344.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| CAS Registry Year (est.) | 1960 |
Related Medroxyprogesterone Standards
- Medroxyprogesterone Acetate EP Impurity I (CAS CATO-C4X-14573)
- 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
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- 4β-Hydroxystanozolol (CAS 125636-92-2)
- 1,1'-Dibenzyl-1,1',2,2',5,5',6,6'-octahydro-3,3'-bipyridine (CAS 1373503-89-9)
- Paliperidone Impurity 23 (CAS CATO-C4X-1724123)
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- Ceritinib Impurity 34 (CAS CATO-C4X-104834)
- Succinic acid compound with 2,2-dimethylpropane-1,3-diol (1:1) (CAS 28257-92-3)
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- N-(2-Methoxy-5-methylphenyl)-1,3-benzothiazol-2-amine (CAS 379728-03-7)
- 1-(3-Bromophenyl)prop-2-en-1-one (CAS 791588-72-2)
- 3-(Naphthalen-1-yl)-1H-pyrazol-5-amine (CAS 209224-89-5)
- 3'-Fluoro-4'-methoxy-[1,1'-biphenyl]-4-carboxylic acid (CAS 106291-25-2)
- Neuropeptide SF (human) (CAS 192387-39-6)
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