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重要规格表
CAS号 EC号 Hill配方 摩尔质量 级别值 60-18-4 200-460-4 C₉H₁₁NO₃ 181.19 g/mol Ph Eur,USP 描述 产品目录编号 108378 同义词 4-Hydroxyphenylalanine, Tyr 产品信息 CAS号 60-18-4 EC号 200-460-4 级别 Ph Eur,USP Hill配方 C₉H₁₁NO₃ Molar Mass 181.19 g/mol HS代码 2922 50 00 结构配方图像 理化信息 密度 1.46 g/cm³ (20 °C) 熔点 297 - 298 °C (分解) pH值 6.5 (0.1 g/l, H₂O) 容积密度 300 kg/m³ 溶解度 0.38 g/l (20 °C) 毒性学信息 LD 50口服 LD50 Rat > 5110 mg/kg GHS安全信息 RTECS YP2275600 储存类别 10 - 13 其它液体及固体 一次性 3
反应性相对较低的有机物必须被收集在第A类, 如果被卤化则在第B类, 如果为固体残留物则归在第C类.规格 规格 Assay (perchloric acid titration, calculated on dried substance) 99.0 - 101.0 % Identity (IR-spectrum) passes test Appearance white to almost white, crystalline powder or colorless crystals Appearance of solution (25 g/l, Hydrochloric acid 2 mol/l) clear and not more intense in color than reference solution Y₇ Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) -11.0 to -12.3 Spec. rotation (α 25/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) -9.8 to -11.2 Chloride (Cl) ≤ 200 ppm Sulphate (SO₄) ≤ 300 ppm Heavy metals (as Pb) ≤ 10 ppm Fe (Iron) ≤ 10 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) ≤ 0.6 % Residual solvents (ICH (Q3C)) excluded by manufacturing process Sulfated ash (600 °C) ≤ 0.1 % Loss on drying (105 °C; 3 h) ≤ 0.3 % Residues of metal catalysts or metal reagents acc. to EMEA/CHMP/SWP/4446/2000
are not likely to be present.Corresponds to Ph. Eur., USP
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