CAS 7048-04-6 MFCD00065606-L-Cysteine hydrochloride monohydrate L-半胱氨酸盐酸盐一水合物 TAO{mole}

L-Cysteine hydrochloride monohydrate L-半胱氨酸盐酸盐一水合物

CAS 7048-04-6 MFCD00065606

化学结构图

SMILES:

化学属性

Mol. Formula	C3H10ClNO3S
Mol. Weight	175.63
TSCA	Yes
Melting Point	175°C
Appearance	3.46mg/kg。无色至白色柱状结晶或白色结晶性粉末，略有特殊性气味。熔点175℃。溶于水、醇、氨水和乙酸，不溶于苯、乙醚、丙酮、乙酸乙酯和四氯化碳。1%的水溶液Ph值为1.7。具有还原性，有抗氧化和防止非酶性褐变作用。小白鼠经口LD 50
Solubility	H2O: 1 M at 20 °C, clear, colorless
Refractive index	6 ° (C=8, 1mol/L HCl)
Stability	对光及空气敏感,易吸潮
Boiling Point	293.9°C at 760 mmHg
Flash Point	131.5°C

别名和识别编码

Chemical Name	L-Cysteine hydrochloride monohydrate
MDL Number	MFCD00065606
CAS Number	7048-04-6
EC Number	200-157-7
Beilstein Registry Number	5158059
Synonym	L-Cysteine (hydrochloride hydrate) {LY} L-Cysteine (hydrochloride hydrate) {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {} {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} L-Cysteine (hydrochloride hydrate) {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} L-Cysteine (hydrochl
Merck Number	2781
PubChem Substance ID	329767969
Chemical Name Translation	L-半胱氨酸盐酸盐一水合物
Reaxys-RN	5158059
InChIKey	QIJRTFXNRTXDIP-JIZZDEOASA-N
LabNetwork Molecule ID	LN00188177
Canonical SMILES	N[C@@H](CS)C(O)=O.[H]Cl.[H]O[H]

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产品应用

生化研究。钢铁原材料中的钙、镁测定。测定溶血素的还原剂。厌氧菌的生长培养和计数。

安全信息

GHS Symbol

WGK Germany1

Hazard statements

H315 Causes skin irritation 会刺激皮肤
H319 Causes serious eye irritation 严重刺激眼睛
H335 May cause respiratory irritation 可能导致呼吸道刺激

Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves

Precautionary statements

P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
P362 Take off contaminated clothing and wash before reuse. 脱掉污染的衣服，清洗后方可重新使用
P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
P305+P351+P338
P332+P313
P305+P351+P338+P337+P313
P302+P350
P302+P352+P332+P313+P362+P364

Signal word

RTECSHA2285000

Safety Statements

S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见；
S37 Wear suitable gloves 戴适当手套；
S60 This material and its container must be disposed of as hazardous waste 该物质及其容器必须作为危险废物处置；
S36 Wear suitable protective clothing 穿戴适当的防护服；

Risk Statements

R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性

Storage condition 2-8°C, sealed storage, away from moisture {LY} 2-8°C, sealed storage, away from moisture Air Sensitive Store at RT. {} {LY} 2-8°C, sealed storage, away from moisture {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C, sealed storage, away from moisture {} {} {} {} {} {} {} {} {} {} {} {} {} {LY

Hazard Codes Xi

其他信息

上游原料:氢硫酸 --> L-胱氨酸 --> L-半胱氨酸 --> 锡粒
参考质量标准:FCC，1992 含量(减压干燥20h)/% 98～102 比旋光度α D 20 +4.5°～+7.0° 干燥失重(减压干燥20h)/% 8.5～12.0 灼烧残渣/% ≤0.2 胱氨酸及其他氨基酸试验 - 重金属(以Pb计)/% ≤0.002 砷(以As计)/% ≤0.00015 铵盐/% ≤0.03
用途三:生化研究。钢铁原材料中的钙、镁测定。测定溶血素的还原剂。厌氧菌的生长培养和计数。 L-Cysteine Hydrochloride Monohydrate别名
方法一:用盐酸加热水解头发6～8h，减压蒸出盐酸，用活性炭脱色、过滤，滤液用氨水中和后得L-胱氨酸粗结晶，然后用氨水重结晶得L-胱氨酸。再以L-胱氨酸为原料，经还原可得L-半胱氨酸，其方法有二。锡粒还原法。将L-胱氨酸溶解于稀盐酸，加入锡粒并升温回流还原反应2h，滤去还原液中剩余的锡粒，并用水稀释，然后通人硫化氢使其饱和；过滤，滤渣用少量水洗；合并洗液和滤液，经减压浓缩、冷却结晶、分离、干燥得L-半胱氨酸盐酸盐。 HOOCCH(NH2)CH2SSCH2CH(NH2)COOH+Sn[HCl,H2S→HSCH2CH（NH2）COOH·CHl 电解还原法将L-胱氨酸和稀盐酸加入电解槽，搅拌溶解，并在50℃下电解；电解液通硫化氢数小时使之饱和；过滤，滤液加活性炭脱色，脱色液经减压浓缩、冷却结晶、分离、干燥得L-半胱氨酸盐酸盐，每吨产品消耗胱氨酸0.7t，盐酸1t。 HOOCCH(NH2)CH2SSCH2CH(NH2)COOH+HCl→HSCH2CH（NH2）COOH·CHl
用途一:用作医药、食品、化妆品添加剂
Sigma Aldrich:7048-04-6(sigmaaldrich)
MOL 文件:7048-04-6.mol
L-盐酸半胱氨酸一水物价格(试剂级):更新日期产品编号产品名称包装价格 2011/08/23 62007534 L-半胱氨酸盐酸盐; (R)-2-氨基-3-巯基丙酸盐酸盐 25g 18元 2011/04/16 C0517 L-半胱氨酸盐酸盐一水合物 L-Cysteine Hydrochloride Monohydrate 500G 1540元 2011/04/16 C0517 L-半胱氨酸盐酸盐一水合物 L-Cysteine Hydrochloride Monohydrate 25G 206元
用途二:作为面制品发酵促进剂，加速谷蛋白形成，防止老化。我国规定可用于发酵面制品，最大使用量0.06g/kg。
下游产品:
敏感性:Hygroscopic
TCI Shanghai:L-半胱氨酸盐酸盐,一水合物 L-Cysteine Hydrochloride Monohydrate,>;99.0%(T)(7048-04-6)
Alfa Aesar:L-巯基丙氨酸盐酸盐一水合物,99% L-Cysteine hydrochloride monohydrate, 99%(7048-04-6)
有吸湿性。在空气中缓慢氧化和分解。溶于水、乙醇和丙酮。水溶液呈酸性。半数致死量(小鼠，腹腔)1250mg/kg。
F:3-10-23