L-Tyrosine, Free Base - CAS 60-18-4 - Calbiochem Non-essential amino acid for human development. Precursor for the synthesis of thyroid hormones and select neurotransmitters, such as dopamine and norepinephrine. 产品信息 Form White solid Molar mass 181.2 Purity ≥98% by titration Contaminants Heavy metals: ≤30 ppm Solubility H2O Chemical formula C9H11NO3 RTECS YP2275600 CAS number 60-18-4 Merck USA index 14, 9839 商店和运输信息 Storage +15°C to +30°C Ship Ambient Temperature Only Irritant Canadian export regulations Due to the country and/or U.S. state of origin of the animal material used in this product, this product may not be exported to Canada.