Promethazine Impurity 69 CAS 129286-73-3

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.129286-73-3
Molecular FormulaC5H11NO
Molecular Weight101.15 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Promethazine Impurity 69 CAS 129286-73-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 101.15 g/mol gives Promethazine Impurity 69 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Promethazine Impurity 69 (CAS 129286-73-3), a pharmacopoeial impurity reference standard (molecular formula C5H11NO, MW 101.15 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C5H11NO, Promethazine Impurity 69 contains an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 101.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), Promethazine Impurity 69 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 FormulaC5H11NO
Molecular Weight101.15 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1993
Nitrogen Atoms1

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