Artemisinin Impurity 5 CAS 1093625-96-7

Purity >80%In StockPharmacopoeial Impurity Standards
CAS No.1093625-96-7
Molecular FormulaC14H22O3
Molecular Weight238.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Artemisinin Impurity 5 CAS 1093625-96-7 chemical structure

Description

The occurrence of Artemisinin Impurity 5 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Artemisinin Impurity 5 (CAS 1093625-96-7), a pharmacopoeial impurity reference standard (molecular formula C14H22O3, MW 238.32 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C14H22O3, Artemisinin Impurity 5 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 238.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 FormulaC14H22O3
Molecular Weight238.32 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>80%
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989

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