Piracetam Impurity 20 CAS 94359-90-7
| CAS No. | 94359-90-7 |
| Molecular Formula | C7H12ClNO3 |
| Molecular Weight | 193.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Piracetam Impurity 20 (C7H12ClNO3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 193.63 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Piracetam Impurity 20 (CAS 94359-90-7), a pharmacopoeial impurity reference standard (molecular formula C7H12ClNO3, MW 193.63 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H12ClNO3 |
| Molecular Weight | 193.63 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Piracetam Standards
- Piracetam Impurity 50 (CAS CATO-C4X-123550)
- Piracetam impurity 31 (CAS CATO-C4X-123531)
- Piracetam Impurity 43 (CAS CATO-C4X-123543)
- Piracetam Impurity 48 (CAS CATO-C4X-123548)
- Piracetam impurity 36 (CAS CATO-C4X-123536)
- Piracetam Impurity 17 (CAS 64026-51-3)
- Piracetam Impurity 23 (CAS CATO-C4X-123523)
- Piracetam Impurity 18 (CAS CATO-C4X-123518)
Recommended Standards
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- Darunavir Impurity 27 (CAS 192725-55-6)
- Estradiol Impurity 7 (CAS 7291-41-0)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
- 2-(1h-Imidazol-1-yl)propanoic acid hydrochloride (CAS 90269-13-9)
- N-ethyl-1,5-diphenyl-1H-pyrazole-4-carboxamide (CAS 477711-86-7)
- 3-[(4-Methyl-1-piperazinyl)methyl]phenylboronic Acid Pinacol Ester (CAS 883738-27-0)
- 1-(5-(2-Methyl-4-nitrophenyl)furan-2-yl)ethan-1-one (CAS 886502-78-9)
- (-)-Sabinene (CAS 10408-16-9)
- Kemptamide (CAS 89315-28-6)
- (Tyr?)-C-Peptide (dog) (CAS 101135-67-5)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com