1,1-Dbh 1,1-Di-n-butylhydrazine 1,1-Dibutylhydrazine 4-04-00-03341 (Beilstein Handbook Reference) 7422-80-2 BRN 1735159 CCRIS 4559 HYDRAZINE, 1,1-DIBUTYL- N,N-Dibutylhydrazine NSC 18798