Pioglitazone impurity 35 CAS CATO-C4X-138335
| CAS No. | CATO-C4X-138335 |
| Molecular Formula | C18H21NO3 |
| Molecular Weight | 299.36 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 Pioglitazone impurity 35.
Pioglitazone impurity 35 (CAS CATO-C4X-138335) is a certified pharmaceutical impurity reference standard with the molecular formula C18H21NO3 and a molecular weight of 299.36 g/mol.
Based on its molecular formula C18H21NO3, Pioglitazone impurity 35 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 299.36 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).
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.
As a certified reference material (CRM), Pioglitazone impurity 35 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 | C18H21NO3 |
| Molecular Weight | 299.36 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Pioglitazone Standards
- Pioglitazone impurity 32 (CAS CATO-C4X-138332)
- Pioglitazone impurity 33 (CAS CATO-C4X-138333)
- Pioglitazone impurity 40 (CAS 1333112-55-2)
- Pioglitazone Bromo Impurity (CAS 669716-58-9)
- Pioglitazone Aldehyde HCl (CAS 856255-80-6)
- Pioglitazone impurity 34 (CAS CATO-C4X-138334)
- Pioglitazone impurity 43 (CAS CATO-C4X-138343)
- Pioglitazone impurity 46 (CAS CATO-C4X-138346)
Recommended Standards
- N,N-bis(4-ethoxyphenyl)acetamide (CAS CATO-C3D-263217)
- Docetaxel Impurity 51 (CAS 147058-27-3)
- CAS 1207681-52-4 (CAS 1207681-52-4)
- Dopamine Impurity 37 (CAS CATO-C4X-190837)
- Selumetinib Impurity 7 (CAS CATO-C4X-30537)
- Vortioxetine Impurity 89 (CAS 1019453-85-0)
- Oclacitinib Impurity 23 (CAS CATO-C4X-301823)
- 2-(5-Aminopyridazin-3-yl)propan-2-ol (CAS 2770530-19-1)
- Methyl (R)-3-amino-3-(4-bromo-2-fluorophenyl)propanoate (CAS 1213361-44-4)
- 2-(2-Mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)-N-(3-methylphenyl)acetamide (CAS 1142200-46-1)
- (S)-1-(2,3-dimethylphenyl)propan-1-amine (CAS 1213152-85-2)
- 3-Methyl-5-(trifluoromethyl)pyrazole (CAS 10010-93-2)
- Opicapone impurity 30 (CAS CATO-C4X-240430)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
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