Travoprost-d4 (CAS 157283-68-6 (unlabeled))

Travoprost-d4 is a deuterium-labeled version of travoprost, a synthetic prostaglandin analog. Travoprost is a selective FP prostaglandin receptor agonist and the isopropyl ester of (+)-fluprostenol. The introduction of deuterium atoms into a molecule can sometimes result in "deuterium kinetic isotope effects," which may lead to altered metabolic stability. Specifically, bonds involving deuterium are slightly stronger than those involving hydrogen, which can slow down the rate at which the molecule is metabolized. In the case of Travoprost-d4, the deuterium labeling allows researchers to track the distribution and breakdown of the molecule in the body with a higher degree of precision than would be possible with the non-labeled version. This is particularly useful in metabolic studies using techniques like mass spectrometry, where the labeled molecule can be distinguished from its metabolites and other background molecules based on the slight increase in mass contributed by the deuterium atoms.