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CAS 139374-47-3 appears in our catalog under these names: 7-Isocyanato-4-methyl-2H-chromen-2-one, 7-Isocyanato-4-methyl-2H-chromen-2-one 95%. Offered by: Biosynth, Ambeed. Available pack sizes: 0,5g, 50mg, 100mg, 250mg, 1g.