(2S,2'S)-2,2'-(ethane-1,2-diylbis(azanediyl))bis(butan-1-ol)-D4 dihydrochloride;(S,S)-2,2’-(1,2-Ethanediyldiimino)-bis-1-butanol-d4 Dihydrochloride; Dexambutol-d4; Ebutol-d4; Etibi-d4; Etapiam-d4; Myambutol-d4; Mycobutol-d4; Sural-d4; Tibutol-d4; EMB;Ethambutol-d4 Dihydrochloride