Pioglitazone Impurity 22 CAS CATO-C4X-138322
| CAS No. | CATO-C4X-138322 |
| Molecular Formula | C19H23NO3S |
| Molecular Weight | 345.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pioglitazone Impurity 22 (CAS CATO-C4X-138322), a pharmacopoeial impurity reference standard (molecular formula C19H23NO3S, MW 345.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Pioglitazone Impurity 22 (C19H23NO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 345.46 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).
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.
CATO manufactures Pioglitazone Impurity 22 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.
Physical & Chemical Properties
| Molecular Formula | C19H23NO3S |
| Molecular Weight | 345.46 g/mol |
| 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 |
| Sulfur Atoms | 1 |
Related Pioglitazone Standards
- Pioglitazone impurity 42 (CAS CATO-C4X-138342)
- (5Z)-Pioglitazone EP Impurity B (CAS 136401-69-9)
- Pioglitazone impurity 38 (CAS CATO-C4X-138338)
- Pioglitazone Impurity 6 (CAS 144809-28-9)
- Pioglitazone Impurity 21 (CAS 105355-26-8)
- Pioglitazone impurity 25 (CAS CATO-C4X-138325)
- Pioglitazone impurity 31 (CAS CATO-C4X-138331)
- Pioglitazone (CAS 111025-46-8)
Recommended Standards
- Pramipexole Impurity 42 (CAS 1797134-75-8)
- 1,1,2-Trimethyl-3-(4-sulfobutyl)benz[e]indolium Inner Salt (CAS 63149-24-6)
- Indocyanine Green Impurity 67 (CAS CATO-C4X-250367)
- tert-Butyl 4-(quinazolin-4-ylthio)piperidine-1-carboxylate (CAS 325146-03-0)
- Mirabegron Impurity 109 (CAS CATO-C4X-1032109)
- Vonoprazan Impurity 32 (CAS 2514742-82-4)
- Biapenem impurity 12 (CAS CATO-C4X-227312)
- Sodium Chondroitin Sulfate A (CAS 39455-18-0)
- 4-(Difluoromethoxy)cyclohexane-1-carboxylic acid (CAS 1206678-19-4)
- Goserelin BP Impurity 10 Acetate (CAS 65807-03-6)
- 1-(2-Ethyl-4-methyl-6-thioxo-1,6-dihydropyrimidin-5-yl)ethan-1-one (CAS 13995-64-7)
- Nabumetone impurity 31 (CAS CATO-C4X-284831)
- Ethyl 4'-nitro-[1,1'-biphenyl]-4-carboxylate (CAS 6242-99-5)
- (DTyr27,36,DThr32)-Neuropeptide Y (27-36) (CAS 163887-48-7)
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