Furo[3,4-B]pyrazine-5,7-dione4744-50-7100 % similar Furo[3,4-B]pyridine-5,7-dione699-98-959 % similar 2-Amino-3-(methoxycarbonyl)pyrazine16298-03-645 % similar Methyl 3-chloropyrazine-2-carboxylate27825-21-445 % similar Naphthalenetetracarboxylic dianhydride81-30-140 % similar Phthalic anhydride85-44-940 % similar 2,3-Dimethyl 2,3-pyridinedicarboxylate605-38-939 % similar Methyl 2-pyrazinecarboxylate6164-79-038 % similar Methyl 3-amino-2-pyridinecarboxylate36052-27-437 % similar 2-Acetyl-3-methylpyrazine23787-80-637 % similar Methyl 2-pyrimidinecarboxylate34253-03-737 % similar 3,6-Dichlorophthalic anhydride4466-59-536 % similar 4,5-Dichlorophthalic anhydride942-06-336 % similar 3-Amino-2-pyrazinecarboxylic acid5424-01-135 % similar Perylenetetracarboxylic dianhydride128-69-834 % similar Bpda2420-87-334 % similar 1,8-Diazafluoren-9-one54078-29-434 % similar 2,3-Naphthalenedicarboxylic anhydride716-39-234 % similar Tetrachlorophthalic anhydride117-08-833 % similar Methyl picolinate2459-07-633 % similar