| 中文名L-蛋氨酸 中文同义DL-甲硫氨;L-2-氨基-4-甲硫基丁酸;L-甲硫氨酸;L-蛋氨酸;L-甲硫氨基酸;L-蛋氨酸砜, 98+%;(S)-2-氨基-4-(甲基巯基)丁酸;L-蛋氨酸(25KG起定) 英文名L-Methionine 英文同义L-Met-OH;L-Methionine, Animal-Free;L-METHIONINE (13C5,D8,15N);L-METHIONINE (1,2,3,4-13C4;METHYL-13CH3);L-METHIONINE, REAGENT GRADE, >=98% (;L-MethionineUSP, 98.5-101.5% (Titration: anhydrous basis);L(-)-Methionin CAS63-68-3 分子式C5H11NO2S 分子量149.21 EINECS200-562-9 结构式  性质熔点284 °C (dec.)(lit.) 比旋光度23.25 º (c=2, 6N HCl) 沸点393.91°C (estimate) 密度1,34g/cm 折射率1.5216 (estimate) 储存条件Store at RT. 溶解度1 M HCl: 0.5 M at 20 °C, clear, colorless 形态Solid 酸度系数(pKa)2.13(at 25℃) 颜色WhitePH值5-7 (10g/l, H2O, 20℃) 旋光性 (optical activity)[α]20/D +23.7±0.5°, c = 5% in 5 M HCl 水溶解性Soluble 最大波长(λmax)λ: 260 nm Amax: 0.40 λ: 280 nm Amax: 0.05Merck14,5975BRN1722294 稳定性Stable. Incompatible with strong oxidizing agents. NIST化学物质信息L-Methionine(63-68-3) EPA化学物质信息L-Methionine (63-68-3) | |||