Organic IntermediateChina Factory Supply Cyanic Acid (1-methylethylidene) Di-4, 1-Phenylene Ester Homopolymer 25722-66-1, Find details about China 2 2-Propanediyldi-4 1-Phenylene Dicyanate, 25722-66-1 from Factory Supply Cyanic Acid (1-methylethylidene) Di-4, 1-Phenylene Ester Homopolymer 25722-66-1