Tetrabenazine Impurity 16 CAS 191847-31-1

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.191847-31-1
Molecular FormulaC14H19NO4
Molecular Weight265.30 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tetrabenazine Impurity 16 CAS 191847-31-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 265.30 g/mol gives Tetrabenazine Impurity 16 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Tetrabenazine Impurity 16 (CAS 191847-31-1), a pharmacopoeial impurity reference standard (molecular formula C14H19NO4, MW 265.30 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Tetrabenazine Impurity 16 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 265.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

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 FormulaC14H19NO4
Molecular Weight265.30 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2011
Nitrogen Atoms1

Related Tetrabenazine Standards

Recommended Standards

Why CATO?