... 24mt/20' FCL 4,Maleic Anhydride /108-31-6 5,purity:99.5% ITEM: Maleic Anhydride1,Cas No: 108-31-6 2,HS Code: 291714003 ... ,Type: Flake and Briquette 4,Application: It used in production ... is main material of binary acid with four carbons, 1,4-butanediol r-butyrolactone, tetrahydrofuran 5,Packing: 25kgs per plastic woven ...