N-Benzyl-β-alanine Ethyl Ester is used as a reagent in organic synthesis including that of dipivaloyloxyphenyl aminopropionate β-agonist prodrugs which are used in the treatment of psoriasis. It is also used in the synthesis of N,N'-dithiobis(N-benzyl-β-alanine) dethyl ester, which is an important intermediate of insecticide OK-135, and in synthesis of spiropiperidine-based orexin-2 receptor (OX2R) antagonists.