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重要规格表
CAS号 EC号 Hill配方 摩尔质量 级别值 5794-13-8 200-735-9 C₄H₈N₂O₃ * H₂O 150.14 g/mol Ph Eur 描述 产品目录编号 101565 同义词 Asparaginic acid semiamide, Asn 产品信息 CAS号 5794-13-8 EC号 200-735-9 级别 Ph Eur Hill配方 C₄H₈N₂O₃ * H₂O Molar Mass 150.14 g/mol HS代码 2924 19 00 结构配方图像 理化信息 熔点 215 - 217 °C 分解 pH值 4.0 - 5.5 (20 g/l, H₂O, 20 °C) 容积密度 530 kg/m³ 溶解度 22 g/l (20 °C) GHS安全信息 储存类别 10 - 13 其它液体及固体 WGK WGK 1 轻度的水危害 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 (20 g/l, CO₂-free water) clear and colorless Spec. rotation (α 20/D, 100 g/l, hydrochloric acid 3 mol/l, calc. on dried substance) 33.7 - 36.0 ° pH (20 g/l, CO₂-free water) 4.0 - 6.0 Chloride (Cl) ≤ 200 ppm Sulphate (SO₄) ≤ 200 ppm Heavy metals (as Pb) ≤ 10 ppm Fe (Iron) ≤ 10 ppm NH₄ (Ammonium) ≤ 0.1 % Aspartic acid ≤ 0.5 % Ninhydrin - positive substances (TLC) (Glutamic acid) ≤ 0.5 % Ninhydrin - positive substances (TLC) (any other impurity) ≤ 0.5 % Residual solvents (Ph.Eur./ICH) class 3 (Ethanol) ≤ 0.5 % Other residual solvents (Ph Eur/ICH) excluded by manufacturing process Sulfated ash (600 °C) ≤ 0.1 % Loss on drying (130 °C, 3 h) 10.5 - 12.5 % Bacterial endotoxins ≤ 3.0 I.U./g Residues of metal catalysts or metal reagents acc. to EMEA/CHMP/SWP/4446/2000
are not likely to be present.Corresponds to Ph. Eur.
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