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4,6-DIMETHOXY-2-METHYLTHIOPYRIMIDINE CAS90905-46-7As medicine, pesticide intermediates for the synthesis of salicylic acid pyridine series of herbicides
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2-Mercapto-4-methyl-5-thiazoleacetic acid CAS34272-64-5/31090-12-7Used as cephalosporin apis and intermediates