[(2)H10]phenytoin is a deuterated form of phenythoin. Phenytoin is an anticonvulsant drug.

Calcifediol-d3 is the deuterated form of calcidiol.Calcidiol is the major circulating metabolite of vitamin D3 and is a competitive inhibitor.

Calcifediol-D6 is a deuterated form of calcidiol.Calcidiol is the major circulating metabolite of vitamin D3 and is a competitive inhibitor.

25-Hydroxy vitamin D2-d3 is the deuterated form of (22Z)-25-OH-D2. (22Z)-25-OH-D2 is a metabolic intermediate of vitamin D₂ and is produced by hydroxylation in the liver.

17α-Hydroxy Progesterone-d8 is the deuterated form of 17-hydroxyprogesterone. 17-Hydroxyprogesterone is an endogenous progestin and a chemical intermediate in the biosynthesis of other steroid hormones.

Testosterone-D5 is a deuterated form of testosterone. Testosterone is the major endogenous androgen.

Fmoc-α-d2-glycine is the deuterated derivative of Fmoc-Gly-OH. Fmoc-Gly-OH is a glycine derivative protected by an Fmoc group and can be used in compound synthesis.

2-bromopropane-d7 is the deuterated form of isopropyl bromide. Isopropyl bromide is an organic halide, mainly used as a raw material for Grignard reagents.

2,2,4,6,6,16,16-Heptadeuterio-androst-4-en-3,17-dion is the deuterated form of 4-androstene-3,17-dione.4-Androstene-3,17-dione is an endogenous weak androgenic steroid hormone.

N-propanol-d7 is the deuterated form of propan-1-ol. Propan-1-ol is mainly used as a drug solvent or excipient.