白色片状结晶或结晶性粉末,有特臭,味微甜。遇强酸不稳定。溶于水(3%,25℃),溶于稀酸和稀碱,微溶于乙醇,几乎不溶于乙醚。
由甲硫醇和丙烯醛等反应制得。
用于生化研究。用于手性药物、手性添加剂、手性助剂等领域,在制药行业作为手性合成的手性源。
中文名 | L-蛋氨酸 |
英文名 | L-Methionine |
别名 | 蛋氨酸 L-蛋氨酸 DL-甲硫氨 L-甲酸氨酸 L-甲硫氨酸 L-甲硫氨基酸 L-甲硫基丁氨酸 L-2-氨基-4-甲硫基丁酸 (S)-2-氨基-4-(甲基巯基)丁酸 |
英文别名 | L-Met-OH H-Met-OH Methionine L-Methionine METHYL-13CH3) L(-)-Methionin L-Methionine, USP Grade (L)-S-methylhomocysteine L-Methionine, Animal-Free L-METHIONINE (1,2,3,4-13C4 L-METHIONINE (13C5,D8,15N) 2-Methyl Eneghlutaronitrile (S)-2-Amino-4-(methylthio)butyric acid |
CAS | 63-68-3 |
EINECS | 200-562-9 |
化学式 | C5H11NO2S |
分子量 | 149.21 |
InChI | InChI=1/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1 |
密度 | 1,34g/cm |
熔点 | 284°C (dec.)(lit.) |
沸点 | 393.91°C (estimate) |
比旋光度 | 23.25 º (c=2, 6N HCl) |
水溶性 | Soluble |
溶解度 | 1 m HCl: 0.5M at 20 °C,澄清,无色 |
折射率 | 1.5216 (estimate) |
酸度系数 | 2.13(at 25℃) |
PH值 | 5-7 (10g/l, H2O, 20℃) |
存储条件 | 20-25°C |
稳定性 | 稳定。与强氧化剂不相容。 |
敏感性 | Sensitive to light |
外观 | 固体 |
颜色 | White |
最大波长(λmax) | ['λ: 260 nm Amax: 0.40', , 'λ: 280 nm Amax: 0.05'] |
Merck | 14,5975 |
BRN | 1722294 |
物化性质 | 为白色片状结晶或结晶性粉末, 特臭, 微甜。 mp280-282℃(分解), 无旋光性, 对热及空气稳定, 对强酸不稳定, 可导致脱甲基作用。 溶于水(3.5%, 25℃), 稀酸和稀碱溶液, 极难溶于乙醇, 不溶于乙醚。 等电点5.74。 |
MDL号 | MFCD00063097 |
风险术语 | 33 - 有累积效应的危险品。 |
安全术语 | 24/25 - 避免与皮肤和眼睛接触。 |
WGK Germany | 2 |
RTECS | PD0457000 |
FLUKA BRAND F CODES | 10-23 |
TSCA | Yes |
海关编号 | 29304010 |
上游原料 | 丙烯醛 贮罐 氯化铵 氰化钠 Fmoc-L-蛋氨酸 L-蛋氨酸亚砜 |
下游产品 | [MET5]脑啡肽 D-蛋氨酸 |
参考资料 展开查看 | 1. 彭锦芬, 陈亮, 周传社. 蛋白酶以及纤维素酶处理对蚕豆秸秆青贮品质及氨基酸含量的影响[J]. 湖南畜牧兽医, 2019(4):6-8. 2. 谈梦霞, 陈佳丽, 邹立思,等. 麦冬与山麦冬中多元指标成分的比较分析[J]. 中国中药杂志, 2018, 43(20). 3. 侯丽娟 严超 齐晓茹 王颉. 不同品种红枣酿制枣酒的香气差异性研究[J]. 食品工业 2017(5):208-212. 4. 严超, 侯丽娟, 齐晓茹,等. 红枣白兰地发酵过程中酒醅氨基酸和有机酸的变化分析[J]. 食品工业科技, 2017, 38(014):121-125. 5. 李婉斯, 李婷, 陆春怡,等. 基于HPLC指纹图谱及聚类分析评价市售阿胶的质量[J]. 上海中医药大学学报, 2017, 031(006):91-96. 6. 王婷婷,郜玉钢,臧埔,赵岩,何忠梅,祝洪艳,张连学.复方麦鹿芪人参制剂主要成分变化及其在肝癌H22荷瘤小鼠体内的抗肿瘤作用[J].吉林大学学报(医学版),2017,43(04):698-704+858-859. 7. Lyu, Man, et al. "Inhibition effect of thiol-type antioxidants on protein oxidative aggregation caused by free radicals." Biophysical chemistry 260 (2020): 106367.https://doi.org/10.1016/j.bpc.2020.106367 8. Zhao, Zheng, et al. "Cholinium amino acids-glycerol mixtures: New class of solvents for pretreating wheat straw to facilitate enzymatic hydrolysis." Bioresource technology 245 (2017): 625-632.https://doi.org/10.1016/j.biortech.2017.08.209 9. Niu, Fushuang, et al. "Controllable electrochemical/electroanalytical approach to generate nitrogen-doped carbon quantum dots from varied amino acids: pinpointing the utmost quantum yield and the versatile photoluminescent and electrochemiluminescent appli 10. Li, Guozhuan, et al. "Comparison of the chromatographic fingerprint, multicomponent quantitation and antioxidant activity of Salvia miltiorrhiza Bge. between sweating and nonsweating." Biomedical Chromatography 32.6 (2018): e4203.https://doi.org/10.1002/bm 11. [IF=9.594] Fushuang Niu et al."Electrochemically generated green-fluorescent N-doped carbon quantum dots for facile monitoring alkaline phosphatase activity based on the Fe3+-mediating ON-OFF-ON-OFF fluorescence principle."Carbon. 2018 Feb;127:340 12. [IF=6.079] Tian Luo et al."Determination of underivatized amino acids to evaluate quality of beer by capillary electrophoresis with online sweeping technique."J Food Drug Anal. 2017 Oct;25:789 13. [IF=4.952] Fengfeng Qu et al."Effect of different drying methods on the sensory quality and chemical components of black tea."Lwt Food Sci Technol. 2019 Jan;99:112 14. [IF=4.411] Yujiao Hua et al."Quality Evaluation of Pseudostellariae Radix Based on Simultaneous Determination of Multiple Bioactive Components Combined with Grey Relational Analysis."Molecules. 2017 Jan;22(1):13 15. [IF=3.535] Tian Luo et al."Establishing a sensitive capillary electrophoresis-UV method for direct determination of amino acids to evaluate vinegar quality."Electrophoresis. 2018 Jun;39(11):1410-1416 16. [IF=2.896] Jing Ke et al."Development of a gradient micellar liquid chromatographic method eluting from micellar mode to high submicellar mode for the rapid separation of free amino acids."Anal Methods-Uk. 2017 Mar;9(11):1762-1770 17. [IF=2.896] Ya-yun Chen et al."Determination of free amino acids and nucleosides and nucleobases in Annona squamosa L. fruitages from different regions in China by LC-QTRAP-MS/MS."Anal Methods-Uk. 2017 Jun;9(25):3862-3869 18. [IF=2.727] Tian Luo et al."Quality assessment of soy sauce using underivatized amino acids by capillary electrophoresis."International Journal Of Food Properties. 2018 Jan 08 19. [IF=1.913] Xie Yunfei et al."Rapid Determination of Amino Acids in Beer, Red Wine, and Donkey-Hide Gelatin by Gradient Elution of HPLC: From Micellar Liquid Chromatography to High Submicellar Liquid Chromatography."J Aoac Int. 2018 Jan;101(1):249-255 20. [IF=1.902] Guozhuan Li et al."Comparison of the chromatographic fingerprint, multicomponent quantitation and antioxidant activity of Salvia miltiorrhiza Bge. between sweating and nonsweating."Biomed Chromatogr. 2018 Jun;32(6):e4203 21. [IF=6.057] Chenglong Sun et al."1,1′-binaphthyl-2,2′-diamine as a novel MALDI matrix to enhance the in situ imaging of metabolic heterogeneity in lung cancer."Talanta. 2020 Mar;209:120557 22. [IF=4.952] Xinru Xu et al."Study of the mechanism of flavor compounds formed via taste-active peptides in bovine bone protein extract."Lwt Food Sci Technol. 2021 Feb;137:110371 23. [IF=4.556] Dandan Zhao et al."Physico-chemical properties and free amino acids profiles of six wolfberry cultivars in Zhongning."J Food Compos Anal. 2020 May;88:103460 24. [IF=4.418] Yuan Li et al."Deciphering the Mechanism of the Anti-Hypertensive Effect of Isorhynchophylline by Targeting Neurotransmitters Metabolism of Hypothalamus in Spontaneously Hypertensive Rats."Acs Chem Neurosci. 2020;11(11):1563–1572 25. 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[IF=4.242] Hang Yang et al."Dietary leucine requirement of juvenile largemouth bass (Micropterus salmoides) based on growth, nutrient utilization and growth-related gene analyses."Aquaculture. 2022 Jun;555:738207 31. [IF=4.142] Zhang Wei et al."Ratiometric fluorescence and colorimetric dual-mode sensing platform based on carbon dots for detecting copper(II) ions and D-penicillamine."Anal Bioanal Chem. 2022 Feb;414(4):1651-1662 32. [IF=7.514] YueTong Yu et al."Identification and Quantification of Oligomeric Proanthocyanidins, Alkaloids, and Flavonoids in Lotus Seeds: A Potentially Rich Source of Bioactive Compounds."Food Chem. 2022 Jan;:132124 33. [IF=7.514] YueTong Yu et al."Identification and Quantification of Oligomeric Proanthocyanidins, Alkaloids, and Flavonoids in Lotus Seeds: A Potentially Rich Source of Bioactive Compounds."Food Chem. 2022 Jan;:132124 |
白色片状结晶或结晶性粉末,有特臭,味微甜。遇强酸不稳定。溶于水(3%,25℃),溶于稀酸和稀碱,微溶于乙醇,几乎不溶于乙醚。
由甲硫醇和丙烯醛等反应制得。
用于生化研究。用于手性药物、手性添加剂、手性助剂等领域,在制药行业作为手性合成的手性源。
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