Misoprostol EP Impurity D (Mixture of E/Z-Isomers) CAS 1331639-92-9

Description

The occurrence of Misoprostol EP Impurity D (Mixture of E/Z-Isomers) is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Misoprostol EP Impurity D (Mixture of E/Z-Isomers) (CAS 1331639-92-9) is a certified pharmaceutical impurity reference standard with the molecular formula C22H36O4 and a molecular weight of 364.52 g/mol.

Structurally, Misoprostol EP Impurity D (Mixture of E/Z-Isomers) (C22H36O4) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 364.52 g/mol, it falls into the moderately-high-molecular-weight range. 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

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