- 4,4′-(2,8-Di-tert-butyl-4,10-dihydropyreno[4,5-d:9,10-d’]diimidazole-5,11-diyl)dibenzoic acid,98%, 250mg
- 4,4′-(2,8-Di-tert-butyl-4,10-dihydropyreno[4,5-d:9,10-d’]diimidazole-5,11-diyl)dibenzoic acid,98%, 50mg