Pemirolast Impurity 7 CAS CATO-C4X-24707
| CAS No. | CATO-C4X-24707 |
| Molecular Formula | C10H9N3O2 |
| Molecular Weight | 203.20 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 Pemirolast Impurity 7.
As a process- or degradation-related impurity, Pemirolast Impurity 7 (CAS CATO-C4X-24707, C10H9N3O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Pemirolast Impurity 7 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 203.20 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.
As a certified reference material (CRM), Pemirolast Impurity 7 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 | C10H9N3O2 |
| Molecular Weight | 203.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Pemirolast Standards
Recommended Standards
- Arginine Impurity 20 (CAS CATO-C4X-242420)
- Glycyl-L-Glutamine (CAS 13115-71-4)
- Nitroso L-Arginine (CAS 2492451-27-9)
- H-Ala-Asn-OH (CAS 31796-57-3)
- Edoxaban Impurity 110 (CAS CATO-C4X-1063110)
- Cefminox Impurity 21 (CAS CATO-C4X-192621)
- Venetoclax Impurity 27 (CAS CATO-C4X-249527)
- 5-Amino-N,3-dimethylisoxazole-4-carbohydrazide (CAS 188920-66-3)
- Methyl 2-Chloro-5-sulfamoylnicotinate (CAS 1118787-24-8)
- 3-[4-(4-Fluorophenyl)piperazin-1-yl]propanoic acid (CAS 435270-82-9)
- 3,3,3-Trifluoro-2-(2-methoxyphenoxy)propan-1-amine (CAS 886764-30-3)
- 4-(2-Aminoethyl)-5-methyl-1H-pyrazol-3(2H)-one (CAS 214839-73-3)
- 4,6-Dichloro-5-methylsulfonyl-pyrimidin-2-amine (CAS 78744-34-0)
- Mast Cell Degranulating (MCD) Peptide HR-2 (CAS 80388-04-1)
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