Pregabalin Impurity 137 CAS CATO-C4X-1312137
| CAS No. | CATO-C4X-1312137 |
| Molecular Formula | C24H42N2O4 |
| Molecular Weight | 422.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Pregabalin Impurity 137 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.
CATO supplies Pregabalin Impurity 137 (CAS CATO-C4X-1312137), a pharmacopoeial impurity reference standard (molecular formula C24H42N2O4, MW 422.60 g/mol) used for the identification and quantification of trace impurities in APIs.
Pregabalin Impurity 137 (C24H42N2O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C24H42N2O4 |
| Molecular Weight | 422.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Pregabalin Standards
- Pregabalin Impurity 62 (CAS CATO-C4X-131262)
- Pregabalin Impurity 72 (CAS CATO-C4X-131272)
- Pregabalin Impurity 73 (CAS CATO-C4X-131273)
- Pregabalin Impurity 124 (CAS CATO-C4X-1312124)
- Pregabalin impurity 100 (CAS CATO-C4X-1312100)
- Pregabalin impurity 107 (CAS CATO-C4X-1312107)
- Pregabalin Impurity PD224378 (CAS 501665-88-9)
- Pregabalin impurity 01 (CAS 466678-45-5)
Recommended Standards
- Mitiglinide Impurity 11 (CAS CATO-C4X-116111)
- Cholic Acid Impurity 59 (CAS 10190-22-4)
- Ruxolitinib Impurity 67 (CAS CATO-C4X-205867)
- Cholic Acid Impurity 1 (CAS 1448-36-8)
- Ethosuximide impurity 14 (CAS CATO-C4X-262514)
- Finerenone Impurity 171 (CAS CATO-C4X-2880171)
- Progesterone Impurity 76 (CAS CATO-C4X-150276)
- 5,5'-(Ethane-1,2-diyl)bis(1,3,4-thiadiazol-2-amine) hydrochloride (CAS 1049735-78-5)
- 2-(3-Chlorophenyl)-N-cyanoacetimidamide (CAS 78622-06-7)
- 5-Bromo-4-ethylpyrimidine (CAS 951884-36-9)
- Methyl (E)-3-(4-(hydroxymethyl)phenyl)acrylate (CAS 117390-06-4)
- Methyl 4-(3-nitropyridin-2-yl)benzoate (CAS 937601-36-0)
- 2-Bromo-5-phenylfuran (CAS 73512-12-6)
- D-Ile27-Tirzepatide (CAS CATO-CPTD788907)
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