Piracetam EP Impurity B CAS 59776-88-4
| CAS No. | 59776-88-4 |
| Molecular Formula | C7H11NO3 |
| Molecular Weight | 157.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Piracetam EP Impurity B (CAS 59776-88-4) is a certified pharmaceutical impurity reference standard with the molecular formula C7H11NO3 and a molecular weight of 157.17 g/mol.
The molecular framework of Piracetam EP Impurity B (C7H11NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Piracetam EP Impurity B 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 | C7H11NO3 |
| Molecular Weight | 157.17 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 1 |
Related Piracetam Standards
- Piracetam Impurity 49 (CAS CATO-C4X-123549)
- Piracetam impurity 42 (CAS CATO-C4X-123542)
- Piracetam Impurity 47 (CAS 33996-49-5)
- Piracetam Impurity 9 (CAS CATO-C4X-12359)
- Piracetam Impurity 45 (CAS CATO-C4X-123545)
- Piracetam impurity 33 (CAS CATO-C4X-123533)
- Piracetam impurity 34 (CAS CATO-C4X-123534)
- Piracetam Impurity 6 (CAS 1096803-44-9)
Recommended Standards
- Atorvastatin Impurity 54 (CAS 141942-85-0)
- Quinoline-5-carbaldehyde (CAS 22934-41-4)
- Avibactam Impurity 130 (CAS CATO-C4X-1348130)
- 1-nitrosopiperidine-4-carboxamide (CAS CATO-C3D-262268)
- Ketoprofen Impurity 106 (CAS 59310-31-5)
- Nitroso Perindopril EP impurity S (CAS CATO-C4X-125256)
- Tunodafil Impurity 12 (CAS CATO-C4X-311012)
- Propanenitrile, 3-[(2-aminoethyl)amino]-, homopolymer (CAS 25609-52-3)
- 2-(Benzyloxy)-5-bromo-N,N-dimethylpyrimidin-4-amine (CAS 205672-18-0)
- 1,1,1,2,3,3-hexafluoro-3-(trichloromethoxy)propane 1,1,1,2,3,3-hexakis(fluoranyl)-3-(trichloromethyloxy)propane 56860-83-4 A831213 (CAS 56860-83-4)
- 3-Methyl-2-Oxobutanoic Acid Sodium Salt (CAS 3715-29-5)
- 1h,2h-Perfluoroisopropyl Fluorosulphonate (CAS 933668-27-0)
- N-(2-chlorophenyl)-2-((4-methoxyphenyl)thio)acetamide (CAS 339097-83-5)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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