dihydroxy-benzene-1,2,4,5-tetracarboxylic acid

p-chlorobenzenediazonium tetrafluoroborate

2,2,3,3-tetraphenylbutane

1,1-二苯基乙烷

3-(tert-butyl)-1,2,5-trioxaspiro[5.5]undeca-7,10-dien-9-one