52-89-1|L-Cysteine hydrochloride_ChemVia, Custom Chemical Service Platform

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Freight number	Package	Original price	Present price	Stock	describe
A00604-25g	25g	￥0.00	￥78.00	10	deliver goods within 1-2 days
A00604-100g	100g	￥0.00	￥120.00	5	deliver goods within 1-2 days
A00604-500g	500g	￥0.00	￥300.00	5	deliver goods within 1-2 days

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Properties
Properties	【外观性状】白色结晶或结晶性粉末，微臭，味酸，易溶于水、氨水、乙酸、微溶于乙醇、丙酮、乙酸乙酯、苯、二硫化碳、四氯化碳。对酸稳定，而在中性或微碱性溶液中易被空气氧化成胱氨酸，微量铁及重金属离子可促进氧化。其盐酸盐较稳定，故一般都制成盐酸盐。L-半胱氨酸是含硫非必需氨基酸。在生物体内，由甲硫氨酸的硫原子置换丝氨酸的羟基氧原子并经膀硫醚而合成。 L-半胱氨酸可生成谷膀甘肽，参与细胞的还原过程和肝脏内的磷脂代谢，能保护肝细胞不受损害，并能刺激造血机能，增加白细胞、促进皮肤损害的修复。其mp为175℃, 分解温度175℃，等电点5.07, [α]25D-16.5 (H2O), [α]25D+6.5 (5mol/L, HCl)。【熔点】180°C【比旋光度】5.5 º (c=8, 6 N HCL)【储存条件】Store at RT.【溶解度】H2O: 1 M at 20 °C, clear, colorless【水溶解性】SOLUBLE【敏感性】Hygroscopic【Merck 】14,2781【BRN 】3560277
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Update	2018-7-10wf