Piracetam Impurity 47 CAS 33996-49-5

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.33996-49-5
Molecular FormulaC7H12N2O2
Molecular Weight156.18 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Piracetam Impurity 47 CAS 33996-49-5 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 Piracetam Impurity 47.

Piracetam Impurity 47 (CAS 33996-49-5) is a certified pharmaceutical impurity reference standard with the molecular formula C7H12N2O2 and a molecular weight of 156.18 g/mol.

Based on its molecular formula C7H12N2O2, Piracetam Impurity 47 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 156.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

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.

As a certified reference material (CRM), Piracetam Impurity 47 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 FormulaC7H12N2O2
Molecular Weight156.18 g/mol
AppearanceWhite to pale yellow crystalline powder. (faint amine-like odor)
Purity≥95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1966
Nitrogen Atoms2

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