3,6-Dichlorophthalic anhydride4466-59-536 % similar 3,6-Difluorophthalic anhydride652-40-436 % similar 4,5-Dichlorophthalic anhydride942-06-336 % similar 3-Chloro-2-pyrazine-carboxylic acid27398-39-635 % similar 3-Methylpyrazine-2-carboxylic acid41110-28-535 % similar 3-Amino-2-pyrazinecarboxylic acid5424-01-135 % similar Perylenetetracarboxylic dianhydride128-69-834 % similar 5,5'-Bi-2-benzofuran-1,1',3,3'-tetrone2420-87-334 % similar 1,8-Diazafluoren-9-one54078-29-434 % similar 2,3-Naphthalenedicarboxylic anhydride716-39-234 % similar Pyrazine-2,3-dicarboxylic acid monoamide67367-37-734 % similar 3-Aminopyridine-2-carboxylic acid ethyl ester27507-15-934 % similar Tetrachlorophthalic anhydride117-08-833 % similar Methyl picolinate2459-07-633 % similar Thiophene-2-carboxylic anhydride25569-97-533 % similar 2-Acetyl-3-ethylpyrazine32974-92-833 % similar Methyl thiazole-2-carboxylate55842-56-333 % similar Pyrazine-2,3-dicarboxamide6164-78-933 % similar Tetrabromophthalic anhydride632-79-133 % similar Tetraiodophthalic anhydride632-80-433 % similar