1,4-BUTYNEDIOL 1,4-Butinodiol [Spanish] 1,4-Butynediol (VAN) 1,4-Butynediol [UN2716] [Poison] 1,4-Dihydroxy-2-butyne 110-65-6 2-Butin-1,4-diol [Czech] 2-Butin-1,4-diol [Czechoslovakia] 2-Butyne-1,4-diol 2-Butynediol 4-01-00-02687 (Beilstein Handbook Reference) AI3-61467 Agrisynth B3D BRN 1071237 Bis(hydroxymethyl)acetylene But-2-yne-1,4-diol Butynediol Butynediol-1,4 [French] EINECS 203-788-6 HSDB 2004 NSC 834 UN2716