Dalfampridine Related Compounds & Impurities

Dalfampridine (4-aminopyridine) is an oral selective potassium-channel blocker that improves axonal conduction in demyelinated nerve fibres, approved to improve walking ability in adult multiple sclerosis patients.

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 Dalfampridine reference standards, pharmacopeial and non-pharmacopeial Dalfampridine 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 Dalfampridine-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

Dalfampridine
Dalfampridine N-Oxide
4-Amino-3-Hydroxypyridine
4-Amino-3-Hydroxypyridine
4-Amino-3-Hydroxypyridine Sulfate
Dalfampridine methylene Bridge Impurity
N-(4-pyridyl)-2-hydroxy butyramide
N,N`-Di(4-pyridinyl)methanediamine
1,2-Bis(4-pyridyl)hydrazine
4,4'-Azopyridine
N-(4-Pyridyl)-3,4-dihydroxybutyramide
Dalfampridine Related Compound A
Fampridine N-Oxide Hydrochloride
1,3-Di-(pyridin-4-yl)urea
Hydrazine Fampridine
Dalfampridine Related Compound B
N-Chloroisonicotinamide
Dalfampridine Impurity 2
Dalfampridine Impurity 5
Dalfampridine Methylene Bridge Nitroso Impurity
Dalfampridine Methylene Bridge Dinitroso Impurity

Isotope Labelled Compounds

Dalfampridine-D4
Dalfampridine-D6
Fampridine-D4