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Gopalakrishnan Mannathusamy

Publications (4)

An Improved and Plant Viable Synthesis of Vitamin K1

Prasad Panchabhai, Neelakandan Kaliaperumal, Gopalakrishnan Mannathusamy & Anbuselvan Chinnadurai · Journal of Pharmaceutical Research International · 2021

An improved and simplified process of vitamin K1 preparation. The article confers the new reagent BF3. Acetic acid complex as a condensation reagent for phytol with compound III in vitamin K1 synthesis, which eludes the use of ethereal reagent and make the process hazard free. Fu...

Open access Research Article 10.9734/jpri/2021/v33i47B33153

An Improved Commercially Feasible Process for Flecainide Acetate

Nilesh Takale, Neelakandan Kaliyaperumal, Gopalakrishnan Mannathusamy & Rajarajan Govindasamy · Journal of Pharmaceutical Research International · 2021

Commercially viable manufacturing process for Flecainide Acetate (I) conforming to regulatory specification and cost effective process is reported. Specifically, an improved process for the preparation of Flecainide Acetate allows isolation of anhydrous hydrochloride salt of Comp...

Open access Research Article 10.9734/jpri/2021/v33i46A32885

Development and Validation of a Diethyl Phosphite Content in Foscarnet Sodium USP by GC MS Technique

Mohan Bhatale, Neelakandan Kaliyaperumal, Gopalakrishnan Mannathusamy & Gurunathan Ramalingam · Journal of Pharmaceutical Research International · 2021

A simple, rapid, selective, and reproducible Gas chromatographic mass spectrometry (GC-MS) method has been developed and validated for the estimation of Diethyl Phosphite content in Foscarnet Sodium USP Drug substance. The drugs were estimated using HP-5, Length-30 M, Internal di...

Open access Research Article 10.9734/jpri/2021/v33i46A32857

Development and Validation of Estimation of Genotoxic Impurity (Benzimidamidecontent) in Leflunomide by Using RP-HPLC Technique

Mohan Bhatale, Neelakandan Kaliyaperumal, Gopalakrishnan Mannathusamy & Gurunathan Ramalingam · Journal of Pharmaceutical Research International · 2021

The measurement of Genotoxic contaminant, a simple, selective, linear, accurate, and specific reverse phase high-performance liquid chromatographic (RP-HPLC) process was proposed. A Benzimidamide impurity in the medication Leflunomide has been discovered. Separation and analysis...

Open access Research Article 10.9734/jpri/2021/v33i45B32782