49870 L-赖氨酸盐酸盐 AR 100g 65
49871 L-赖氨酸盐酸盐 AR 500g 285
49872 L-赖氨酸盐酸盐 Ultra pure,≥99.5% (AT) 25g 85
49873 L-赖氨酸盐酸盐 Ultra pure,≥99.5% (AT) 100g 185
49874 L-赖氨酸盐酸盐 Ultra pure,≥99.5% (AT) 500g 682
49875 L-赖氨酸盐酸盐 非动物源，EP, JP, USP ；用于细胞培养，98.5 to 101.0% 25g 112
49876 L-赖氨酸盐酸盐 非动物源，EP, JP, USP ；用于细胞培养，98.5 to 101.0% 100g 215
49877 L-赖氨酸盐酸盐 BR 100g 86
无色结晶状物质，无臭，味苦甜；易溶于水，微溶于乙醇和乙醚；10%水溶液pH值为5.6 熔点 263 °C (dec.)(lit.) 比旋光度 21 o (c=8, 6N HCl) 溶解度 H2O: 100 mg/mL
99%： 外观Appearance White Powder or crystal 红外光谱Infrared spectrometry Conforms to Structure 熔点Melting point 263°C - 264°C 纯度Purity 99.0 - 101.0 % (以干基计) 干燥损失Loss on drying <0.3 % (105°C, 3 小时) 重金属Heavy metals (as Pb) <10 ppm 硫酸盐灰分Sulfated ash <0.1 % 比旋度Specific rotation [a]20/D +20.5° - +21.5° (c=8, 6 N HCl) 痕量分析Trace analysis : 硫酸根SO4 < 200 PPM 氨基NH4 < 200 PPM 砷As < 1 PPM 铁Fe < 30 PPM 透光度Transmittance > 95 % (c=10, H2O, 430 nm) 1 cm cell 其它氨基酸Foreign amino acids <0.5 % (TLC, 50 ug 点样) Ultra pure,≥99.5% (AT): 外观Appearance White Powder or crystal 红外光谱Infrared spectrometry Conforms to Structure 纯度Purity ≥99.5% (AT) 比旋光度Specific rotation [α]20/D +20.5±0.5°, c = 5% in 5 M HCl 不溶物insoluble matter, passes filter test 外源氨基酸foreign amino acids ≤0.3% 灼烧残渣Residue on ignition ≤0.1% (as SO4) 干燥损失loss on drying, 20 °C (HV) ≤0.5% pH 5.0-6.0 (25 °C, 0.5 M in H2O) 水溶性solubility H2O: soluble0.5 M at 20 °C, clear, colorless 硫酸根sulfate (SO42-): ≤100 ppm Al: ≤5 ppm As: ≤0.1 ppm Ba: ≤5 ppm Bi: ≤5 ppm Ca: ≤10 ppm Cd: ≤5 ppm Co: ≤5 ppm Cr: ≤5 ppm Cu: ≤5 ppm Fe: ≤5 ppm K: ≤50 ppm Li: ≤5 ppm Mg: ≤5 ppm Mn: ≤5 ppm Mo: ≤5 ppm NH4+: ≤100 ppm Na: ≤50 ppm Ni: ≤5 ppm Pb: ≤5 ppm Sr: ≤5 ppm Zn: ≤5 ppm λ 0.5 M in H2O UV absorption λ: 260 nm A: ≤0.1 λ: 280 nm A: ≤0.1 品级Grade 非动物源，EP, JP, USP ；用于细胞培养，98.5 to 101.0% (from non-animal source, EP, JP, USP, for cell culture, 98.5 to 101.0%) 来源origin non-animal source 外观appearance white crystalline powder 红外鉴别试验identification by ir compares to reference standard 水溶解性solubility clear colorless solution at 1.0g to 10ml of water 比旋光度specific rotation +20.8 to +21.5 deg (20degc/EP) +20.4 to +21.4 deg (25degc/USP) c = 8 in 6m hydrochloric acid 氯chloride 19.12 to 19.51% 铵ammonium ≤ 0.02% 硫酸盐sulfate ≤ 0.020% 铁iron ≤ 10 ppm 重金属heavy metals ≤ 10 ppm 砷arsenic ≤ 1 ppm 干燥失重loss on drying ≤ 0.10% 灼烧残渣residue on ignition ≤ 0.10% 残留溶剂residual solvents meets the requirements 茚三酮阳性物质ninhydrin-positive substances (other amino acids) conforms ph test 5.0 to 6.0 (10% in water) 含量assay (dry basis) 98.5 to 100.5% 内毒素endotoxin assay ≤ 1 eu/mg 细胞培养测试cell culture test pass
危险品标志 Xi WGK Germany 2 RTECS号 OL5650000 F 10 危险类别码 34-36/37/38 安全说明 26-36/37/39-45-24/25
用途 用于生化研究，医药上用于促进儿童生长发育、增进食欲和胃酸分泌。 用途 用作医药原料及食品、饲料添加剂