(S)-(-)-Carbidopa-d3 H2O (ring-d3),(S)-3-(3,4-Dihydroxyphenyl-2,5,6-d3)-2-hydrazinyl-2-methylpropanoic acid hydrate,"Labeled (S)-Carbidopa, intended for use as an internal standard for the quantification of Carbidopa by GC- or LC-mass spectrometry.",Carbidopa Therapeutic
