Entacapone Related Compounds & Impurities

Entacapone is a peripheral catechol-O-methyltransferase (COMT) inhibitor that extends levodopa plasma half-life, used as adjunct therapy in Parkinson's disease.

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 Entacapone reference standards, pharmacopeial and non-pharmacopeial Entacapone 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 Entacapone-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

Entacapone
Entacapone EP Impurity A
(E)-3-O-Methyl Entacapone
Entacapone EP Impurity E
Entacapone Benzaldehyde Impurity (Entacapone EP Imp C)
Entacapone EP Impurity B
Entacapone EP Impurity D
Entacapone EP Impurity F
Entacapone EP Impurity G
Entacapone EP Impurity H
Entacapone EP Impurity I
Entacapone 3-beta-D-Glucuronide Disodium Salt
Entacapone 3-b-D-glucuronide
Entacapone Vanillin Dimer Impurity
5-Nitrovanillin Dimer Impurity
N,N-Diethyl-2-hydroxyacetamide
Entacapone Impurity 6
(E/Z)-3-O-Methyl Entacapone
Entacapone Impurity 9
Entacapone Benzoic Acid Impurity
Entacapone Methoxy Impurity
Entacapone Amide Impurity
Desethyl Entacapone
Entacapone Sulfate
Entacapone EP Impurity F Monohydrate
Entacapone impurity B

Isotope Labelled Compounds

Entacapone -D10