(1,1'-Biphenyl)-2,2'-diyl sulfide 132-65-0 2,2'-Biphenylylene sulfide 9-Thiafluorene AI3-00043 CCRIS 5307 DIBENZOTHIOPHENE Dibenzo(b,d)thiophene Dibenzothiophene [USAN] Diphenylene sulfide EINECS 205-072-9 NSC 2843 alpha-Thiafluorene