lithium,but-1-ene

Methyl 4-methyl-1-benzothiophene-2-carboxylate

2,2,2-三甲基苯乙酮

2,4,6-三苯基三嗪

2-t-butyl-2,4,6-triphenyl-1,2-dihydro-1,3,5-triazine