REFERENCE STANDARD Specifically, prepared drug substance batch and an authentic material of the highest purity used for structural elucidation and benchmark for working standard. Reference Standards can ...

WORKING STANDARDS A Drug Substance or chemical material of established quality and purity as shown by comparison to the reference standard material and used as Reference Working Substance for routine quality cont ...

IMPURITY STANDARDS 'Impurities' refers to synthetic impurity standards and known metabolites of APIs that have been resynthesized to the highest purity, and are supplied with full analytical data, allowing precis ...

ISOTOPE LABELLED COMPOUNDS Isotope Labelled Compound is a chemical substance in which part of the molecules are labelled with an isotope so that observations the isotopic comp ...

METABOLITES A metabolite is the intermediate end product of metabolism. The term metabolite is usually restricted to small molecules. A drug metabolite is a ...

RESEARCH CHEMICALS Research chemicals are chemical substances used by scientists for scientific research and development purposes. Research Chemicals are produced by Custom Synthesis Methods. One characteristic of a ...