Lotilaner Impurity 27 (E-Isomer) CAS 2758907-88-7

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.2758907-88-7
Molecular FormulaC17H10Cl3F3O3S
Molecular Weight457.68 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Lotilaner Impurity 27 (E-Isomer) CAS 2758907-88-7 chemical structure

Description

CATO supplies Lotilaner Impurity 27 (E-Isomer) (CAS 2758907-88-7), a pharmacopoeial impurity reference standard (molecular formula C17H10Cl3F3O3S, MW 457.68 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Lotilaner Impurity 27 (E-Isomer) (C17H10Cl3F3O3S) is characterized by a steroid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

CATO manufactures Lotilaner Impurity 27 (E-Isomer) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC17H10Cl3F3O3S
Molecular Weight457.68 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2002
Halogen ContentF/Cl-containing
Sulfur Atoms1

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