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L -半胱氨酸 盐酸盐 一水合物
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| 产品编号 | 包装单位 | 单价(元) | 国内现货 | 国外库存 | 询价单 |
| 4058547 | 25 kg | 58470 |
产品别名
7048-04-6
Cys, L-Cysteinium Chloride Monohydrate, L-Cysteine Hydrochloride, Monohydrate
结构式
基本信息
| Linear Formula【线性分子式】 | HSCH2CH(NH2)COOH · HCl · H2O |
| Molecular weight | 175.63 |
| Beilstein | 5158059 |
| MDL number | MFCD00065606 |
| EC Index Number【EC索引号】 | 200-157-7 |
| Biochem/physiol Actions【生化/生理作用】 | NMDA 谷氨酸受体拮抗剂。 |
| Analysis Note【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 to 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 (SO₄): ≤ 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 proces Sulfated ash (600 °C): ≤ 0.1 % Loss on drying (Vacuum < 0.7 kPa, P₂O₅, 24 h): 8.0 - 12.0 % Bacterial endotoxins: ≤ 6.0 I.U./g Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). Corresponds to Ph. Eur., USP. |
| Legal Information【法律信息】 | Emprove is a registered trademark of Merck KGaA, Darmstadt, Germany |
产品性质
| Quality Level【质量水平】 | 500 |
| agency | JP Ph. Eur. USP |
| vapor pressure【蒸汽压】 | <0.1 hPa ( 20 ℃) |
| product line【产品线】 | EMPROVE® EXPERT |
| Assay【测定】 | 98.5-101.0% dry basis (alkalimetric) |
| form【形式】 | crystalline powder |
| pH【pH值(酸碱度)】 | 0.8-1.2 (20 ℃, 100 g/L in H2O) |
| mp | 168-170 ℃ |
| solubility【溶解性】 | 650 g/L |
| density | 1.54 g/cm3 |
| bulk density【堆积密度】 | 780 kg/m3 |
| anion traces【痕量阴离子】 | sulfate (SO42-): ≤300 ppm |
| cation traces【痕量阳离子】 | Fe: ≤20 ppm heavy metals (as Pb): ≤10 ppm |
| storage temp.【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
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | WGK 1 |
