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ETHYL 2-OXOCYCLOPENTANECARBOXYLATE CAS611-10-9Used as drug intermediates or spices additive
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Sodiumformaldehydesulfoxylate dihydrate CAS6035-47-8Pull white agent, reducing agent, bleaching agent and the production of indigo dyes, vat dyes
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2,3-PYRAZINEDICARBOXYLIC ACID CAS89-01-0The goods for the intermediates of anti tuberculosis drug pyrazinamide.