L-Cysteine, Hydrochloride 产品信息 Form White solid Molar mass 157.6 Purity >98% by titration Solubility H2O Chemical formula C3H7NO2S · HCl RTECS HA2275000 CAS number 52-89-1 Merck USA index 14, 2781 商店和运输信息 Storage +15°C to +30°C Ship Ambient Temperature Only Irritant 安全标示 S Phrase S: 26-36-45 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). R Phrase R: 36/37/38 Irritating to eyes, respiratory system and skin.