Fesoterodine Related Compounds & Impurities

Fesoterodine is a non-selective muscarinic receptor antagonist prodrug rapidly converted to its active metabolite 5-hydroxymethyl tolterodine, used for overactive bladder.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Fesoterodine reference standards, pharmacopeial and non-pharmacopeial Fesoterodine impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Fesoterodine-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Fesoterodine Impurity P
Monoester of Symmetrical Dimer
Fesoterodine
Fesoterodine Diol Dimer Monoester
Fesoterodine Monoester Of Symmetrical Dimer Fumarate
Fesoterodine Symmetrical Dimer Of Diol Fumarate
N-Nitroso Fesoterodine
Fesoterodine Impurity 13
(R,E)-4-((3-(3-(diisopropylamino)-1-phenylpropyl)-4-isobutoxybenzyl)oxy)-4-oxobut-2-enoic acid
Fesoterodine Related Impurity 9
Fesoterodine Fumarate Ester of Diol
(R)-4-(hydroxymethyl)-2-(3-(isopropylamino)-1-phenylpropyl)phenyl isobutyrate
Fesoterodine Impurity E
Fesoterodine Fumarate Impurity G
(R)-4-(Benzyloxy)-3-(3-(diisopropylamino)-1-phenylpropyl)benzoic acid
Fesoterodine Acid Impurity
Fesoterodine Impurity 4
Fesoterodine Dimer Diester Fumarate
Fesoterodine N-Oxide
(R)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxymethyl)phenyl methacrylate 2-hydroxy-2-phenylacetate
Fesoterodine Impurity G (Mixture)
Fesoterodine Impurity 16
Fesoterodine Impurity E Fumarate
Fesoterodine Impurity 2

Isotope Labelled Compounds

Fesoterodine D7