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| CAS号 : | 52-89-1 |
精确质量 : | 156.99600 |
| 分子式 : | C3H8ClNO2S |
logP : | 0.83040 |
| 分子量 : | 157.61900 |
PSA : | 102.12000 |
L-半胱氨酸盐酸盐无水物 | |
L-Cysteine hydrochloride | |
52-89-1 | |
C3H8ClNO2S | |
157.61900 | |
102.12000 | |
0.83040 | |
156.99600 |
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白色固体
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131.5ºC
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293.9ºC at 760 mmHg
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140-142ºC
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Stable, but light, moisture and air sensitive. Incompatible with strong oxidizing agents, some metals.
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Store at RT.
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GHS07 | |
警告 | |
H315; H319; H335 | |
P261; P305 + P351 + P338 | |
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HA2275000
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2
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S26-S36
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2930909090
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Xi
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R36/37/38
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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1.将胱氨酸溶于稀盐酸中,过滤加入锡粒升温回流。将还原液用水稀释,移去剩余锡粒,通过硫化氢使饱和,过滤,滤渣用少量水洗,将洗液、滤液合并,减压浓缩,冷却结晶,干燥得盐酸L-半胱氨酸。 | |
营养增补剂，面包改良剂，抗氧化剂，护色剂。 |
