
Simson Pharma Limited offers pharmaceutical reference and impurity standards, isotope-labelled compounds, metabolites, research chemicals and custom synthesis. Its head office is in Mumbai and its R&D laboratory in Hyderabad (India). Its website lists ISO 9001, ISO 14001, ISO 45001, ISO/IEC 17025 and ISO 17034 (NABL) certificates and a GMP certificate.
Product groups

Impurity standards
Impurity standards for active pharmaceutical ingredients, as defined in pharmacopoeias such as USP, EP and BP. The website emphasises an expert team, continuous supply and technical support.

Nitrosamine impurities
N-nitroso impurities monitored in drug substances (for example for amiodarone, quetiapine and meglumine).

Reference standards
Certified pharmaceutical reference standards used to verify identity, content and purity in pharmaceutical analysis.

Working standards
Chemical substances or active ingredients whose quality has been established against a reference standard, for use in routine quality control analysis.

Stable isotope-labelled compounds
Non-radioactive compounds in which part of the molecule is labelled with an isotope (for example deuterium); traceable by mass spectrometry and NMR and used as internal standards in bioanalytical BA/BE studies.

Metabolites
High-purity, well-characterised drug metabolite standards for bioanalytical BE/BA studies.

Research chemicals
Custom-synthesised chemicals for laboratory research use only (not for human or veterinary use).

Custom synthesis
Custom synthesis of complex organic molecules from mg to kg scale: impurities, active ingredients, metabolites, labelled isotopes, amino acids and oligopeptides, nucleosides.