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位置: 首页> 品牌> Sigma-Aldrich> L -半胱氨酸 盐酸盐 一水合物

L -Cysteine hydrochloride monohydrate

L -半胱氨酸 盐酸盐 一水合物

品牌
Millipore
CAS
7048-04-6
货号
1.02839
规格纯度
for biochemistry
价格
511.58 *本价格含增值税费
促销
服务
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  • 包邮
  • 增值税票
数量
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半岛bd体育手机客户端 名称:
7048-04-6
L -Cysteine hydrochloride monohydrate
Cys, L-Cysteinium Chloride Monohydrate, L-Cysteine Hydrochloride, Monohydrate
L -半胱氨酸 盐酸盐 一水合物
半岛bd体育手机客户端 介绍:

半岛bd体育手机客户端 说明

生化/生理作用

NMDA 谷氨酸受体拮抗剂。

分析说明

Assay (alkalimetric, calculated on dried substance): 98.5 - 101.0 %
Identity (IR-spectrum): passes test
Identity (Chloride): passes test
Appearance: white or almost white, crystalline powder or colorless crystals
Appearance of solution (25 g/l, water): clear and not more intense in color than reference solution BY6
Spec. rotation (α 20/D, 80?g/l, hydrochloric acid 250?g/l, calc. on dried substance): +5.5 to +7.0
Spec. rotation (α 25/D, 80?g/l, hydrochloric acid 6?mol/l, calc. on dried substance): +5.7 to +6.8
Sulfate (SO?): ≤ 300 ppm
Heavy metals (as Pb): ≤ 10 ppm
Fe (Iron): ≤ 20 ppm
Related Compounds, total (TLC): ≤ 0.5 %
Ninhydrin-positive substances (LC)(impurity A (570 nm)): ≤ 0.5 %
Ninhydrin-positive substances (LC)(any ninhydrin-positive impurity): ≤ 0.2 %
Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.02 %
Ninhydrin-positive substances (LC)(total impurities): ≤ 1.0 %
Residual solvents (ICH Q3C): excluded by manufacturing process
Sulfated ash (600?°C): ≤ 0.1 %
Loss on drying (Vacuum Bacterial endotoxins: ≤ 6.0 I.U./g

基本信息

线性分子式 HSCH2CH(NH2)COOH · HCl · H2O
分子量 175.63
Beilstein 5158059
MDL编号 MFCD00065606
EC索引号 200-157-7

半岛bd体育手机客户端 性质

质量水平 100
蒸汽压 <0.1 hPa ( 20 ℃)
测定 98.5-101.0% dry basis (alkalimetric)
形式 crystalline powder
pH值(酸碱度) 0.8-1.2 (20 ℃, 100 g/L in H2O)
mp 168-170 ℃
溶解性 650 g/L
密度 1.54 g/cm3
堆积密度 780 kg/m3
痕量阴离子 sulfate (SO42-): ≤300 ppm
痕量阳离子 Fe: ≤20 ppm
heavy metals (as Pb): ≤10 ppm
储存温度 2-30℃
SMILES string O.Cl.N[C@@H](CS)C(O)=O
InChI 1S/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2/t2-;;/m0../s1
InChI key QIJRTFXNRTXDIP-JIZZDEOASA-N

安全信息

象形图 GHS07
警示用语: Warning
危险声明 H319
预防措施声明 P264 - P280 - P305 + P351 + P338 - P337 + P313
危险分类 Eye Irrit. 2
储存分类代码 13 - Non Combustible Solids
WGK WGK 1
闪点(F) Not applicable
闪点(C) Not applicable

Sigma-Aldrich

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