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2,4-dimethyl-1,5,7,9-tetrazabicyclo[4.3.0]nona-2,4,6,8-tetraen-8-amine cas 7135-02-6Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by expr

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin