Perylenetetracarboxylic dianhydride128-69-8100 % similar Naphthalenetetracarboxylic dianhydride81-30-181 % similar 1,8-Naphthalic anhydride81-84-554 % similar 4-Chloro-1,8-naphthalic anhydride4053-08-153 % similar Phthalic anhydride85-44-952 % similar 4-Amino-1,8-naphthalic anhydride6492-86-052 % similar 4-Bromo-1,8-naphthalic anhydride81-86-752 % similar Bpda2420-87-350 % similar 4,4′-Oxydiphthalic anhydride1823-59-247 % similar 4-Chlorophthalic anhydride118-45-645 % similar 4-Methylphthalic anhydride19438-61-045 % similar Benzophenonetetracarboxylic dianhydride2421-28-545 % similar 4-Fluorophthalic anhydride319-03-945 % similar Pigment red 1795521-31-345 % similar 4-Bromophthalic anhydride86-90-845 % similar 2,3-Naphthalenedicarboxylic anhydride716-39-245 % similar 3,3′,4,4′-Diphenyl sulfone tetracarboxylic dianhydride2540-99-042 % similar Pigment violet 2981-33-442 % similar 4-Sulfonaphthalic anhydride potassium salt71501-16-141 % similar 4,5-Dichlorophthalic anhydride942-06-341 % similar