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2,3,5,6-Tetramethyl-1,4-phenylenediamine CAS: 3102-87-2
Min. Order: 1 Kilogram
FOB Price: USD 100-1,000
3,3',5,5'-Tetramethylbenzidine dihydrochloride CAS: 64285-73-0
Min. Order: 1 Kilogram
FOB Price: USD 100-1,000