(±)-Propionylcarnitine chloride (Propionyl-DL-carnitine chloride) is a mixture of short-chain acylcarnitines used as a dietary supplement for the study of chronic diabetes.

One of the principal nucleosides of DNA composed of cytosine and deoxyribose. A nucleoside consists of only a pentose sugar linked to a purine or pyrimidine base without a phosphate group.

Tuftsin is a tetrapeptide (Thr-Lys-Pro-Arg) that specifically binds monocytes, macrophages, and polymorphonuclear leukocytes and potentiates their natural killer activity against tumors and pathogens.