Dl-methionine, Grade Standard : food grade

We are offering dl-methionine cas no.:59-51-8 quality standard: fcc4 description: white crystals or crystalline powder. assay: 98.5%~101.5% heavy metals: 0.002% max. Residue on ignition: 0.1% max. Arsenic: 1.5ppm max loss on drying: 0.5% max lead: 10ppm