barbituric

[bahr-bi-too r-ik, -tyoo r-] /ˌbɑr bɪˈtʊər ɪk, -ˈtyʊər-/
adjective, Chemistry
1.
of or derived from barbituric acid.
Origin
1865-70; < French barbiturique < German Barbitur(säure) barbituric acid (of obscure origin) + -ique -ic