Rilpivirine D6

Labeled Clopidogrel, intended for use as an internal standard for the quantification of Clopidogrel by GC- or LC-mass spectrometry.

Impurity in commercial preparations of Diazepam

Doxofylline is a xanthine molecule that appears to be both bronchodilator and anti-inflammatory with an improved therapeutic window over conventional xanthines such as Theophylline and the evidence supporting the effects of Doxofylline in the treatment

Rasagiline, is a selective and irreversible propargylamine inhibitor of monoamine oxidase which has been used to increase the availability of dopamine at striatal receptors as a method to treat Parkinson’s disease.

Molecular formula: C20H22ClNO4Molecular weight: 339.38

Impurity in commercial preparation of Piracetam.

Labeled Sildenafil, intended for use as an internal standard for the quantification of Sildenafil by GC- or LC-mass spectrometry.

Molecular formula: C14H21N3O2SMolecular weight: 295.14

Molecular formula: C16H14F3N3O2SMolecular weight: 369.36

Molecular formula: C11H9I3N2O4Molecular weight: 613.91

Selective inhibitor of phosphodiesterase V (PDE 5); potent coronary vasodilator drug; adenosine transport inhibitor; inhibitor of platelet aggregation.;Labeled Dipyridamole, intended for use as an internal standard for the quantification of Dipyridamole by GC- or LC-mass spectrometry.

Deuterated Raloxifene, a nonsteroidal estrogen receptor mixed agonist/antagonist.;Labeled Raloxifene, intended for use as an internal standard for the quantification of Raloxifene by GC- or LC-mass spectrometry.

Clearsynth Labs Limited is a technology-based, research-driven, innovation-led enterprise specializing in deuterium chemistry and stable isotopes. Headquartered in Mumbai, with an R&D center in Hyderabad and a CDMO facility in Karnataka, alongside operations in Canada and the USA, we deliver solutions from milligram-scale R&D to multi-ton manufacturing. Our expertise spans deuterated APIs, intermediates, impurities, and reference standards. Backed by strong IP and 350+ scientists, we partner with innovators and generics across CDMO and CMO segments, committed to precision, quality, and advancing next-generation isotopic solutions for global pharmaceutical needs.