本品为白色结晶或结晶性粉末,无臭、无味。熔点185℃(分解)。溶于水(3.6%,25℃),难溶于乙醇,不溶于甲醇、醚、苯、丙酮、氯仿、乙酸乙酯和冰乙酸。对酸、碱、热水不稳定,水解成L-谷氨酸。参与消化道黏膜黏蛋白构成成分氨基葡萄糖的生物合成,从而促进黏膜上皮组织的修复,有助于溃疡病灶的消除。同时,它能通过血脑屏障促进脑代谢,提高脑机能,与谷氨酸一样是脑代谢的重要营养剂。
氨基酸类药。用于低酸性、消化性溃疡。口服一次0. 5g,一日3~4次。用于改善智力发育不良儿童和精神障碍、酒精中毒、癫痫病人脑功能。每日0.1~0. 72g。
中文名 | L-谷氨酰胺 |
英文名 | L(+)-Glutamine |
别名 | 麸氨酰胺 左谷酰胺 L-谷酰胺 L-氨酰胺 L-谷胺酰胺 L-谷氨酰胺 L-谷氨酸酰胺 L-谷氨酸-5-酰胺 L-(+)-谷氨酰胺 L-谷氨酰胺(200MM) L-(+)-2-氨基-5-酰胺酸 L-GLUTAMINE L-谷氨酰胺 |
英文别名 | L-GLN H-Gln-OH L-Glutamine L-GLUTAMINE glutamine, L- levoglutamide LEVOGLUTAMIDE L(+)-Glutamine L(+)-GLUTAMINE alpha-glutamine glutaminic acid L-(+)-glutamine (S)-(+)-glutamine L-GLUTAMIC ACID AMIDE L-GLUTAMIC ACID 5-AMIDE L-Glutamic acid 5-amide L-2-Aminoglutaramic acid L(+)-Glutamic acid-5-amide L(+)-GLUTAMIC ACID-5-AMIDE 2-Aminoglutaramic acid, L- L-(+)-glutamic acid-5-amide 2,5-Diamino-5-oxpentanoicacid 2,5-Diamino-5-oxopentanoic acid, (S)- (2S)-2-amino-4-carbamoylbutanoic acid |
CAS | 56-85-9 |
EINECS | 200-292-1 |
化学式 | C5H10N2O3 |
分子量 | 146.14 |
InChI | InChI=1/2C5H10N2O3/c2*6-3(5(9)10)1-2-4(7)8/h2*3H,1-2,6H2,(H2,7,8)(H,9,10) |
InChIKey | ZDXPYRJPNDTMRX-VKHMYHEASA-N |
密度 | 1.47 g/cm3 (20℃) |
熔点 | 185 °C (dec.) (lit.) |
沸点 | 265.74°C (rough estimate) |
比旋光度 | 32.25 º (c=10, 2 N HCl) |
闪点 | 185°C |
水溶性 | Soluble in water, dimethyl sulfoxide and ethanol. Insoluble in methanol, ether, benzene, acetone, ethyl acetate and chloroform. |
蒸汽压 | 3.3E-24mmHg at 25°C |
JECFA Number | 1430 |
溶解度 | H2O: 25 mg/mL |
折射率 | 6.8 ° (C=4, H2O) |
酸度系数 | 2.17(at 25℃) |
PH值 | 5.0-6.0 (25℃, 0.1M in H2O) |
存储条件 | Store below +30°C. |
稳定性 | 稳定性水分和光敏感。与湿气、强氧化剂不相容。 |
外观 | 溶液 |
颜色 | White |
最大波长(λmax) | ['λ: 260 nm Amax: 0.01', , 'λ: 280 nm Amax: 0.01'] |
Merck | 14,4471 |
BRN | 1723797 |
物化性质 | 无色针状结晶物;无臭无味;溶于水(25℃水中溶解度为3.6%),微溶于乙醇,不溶于乙醚、甲醇、苯、丙酮、氯仿、乙酸乙酯和冰乙酸;遇热、酸、碱不稳定,易水解为L-谷氨酸;pI5.65,分解点为185-186℃;比旋光度[α]23D+6.1°(0.5-2 mg/ml,水中),[α]20D+32°(0.5-2 mg/ml,1 mol/L盐酸中)。 |
MDL号 | MFCD00008044 |
危险品标志 | Xi - 刺激性物品 |
风险术语 | R36 - 刺激眼睛。 R36/37/38 - 刺激眼睛、呼吸系统和皮肤。 |
安全术语 | S26 - 不慎与眼睛接触后,请立即用大量清水冲洗并征求医生意见。 S24/25 - 避免与皮肤和眼睛接触。 S36/37/39 - 穿戴适当的防护服、手套和护目镜或面具。 S27 - 一旦衣物受到污染,请立即脱去。 |
WGK Germany | 2 |
RTECS | MA2275100 |
TSCA | Yes |
海关编号 | 29241900 |
上游原料 | L-谷氨酸甲酯 |
下游产品 | N-乙酰-L-谷氨酰胺 H-GLU(VAL-OH)-OH N-苄氧羰基-L-谷氨酰胺 3-N-苄氧羰基氨基-2,6-二氧代哌啶 (S)-3-氨基哌啶-2,6-二酮 AMINO ACID HYDROXAMATES L-GLUTAMIC ACID GAMMA-MONOHYDROXAMATE |
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Xiaokui Huo, Xiangge Tian, Yannan Li, Lei Feng, Yonglei Cui, Chao Wang, Jingnan Cui, Chengpeng Sun, Kexin Liu, Xiaochi Ma, A highly selective ratiometric fluorescent probe for real-time imaging of β-glucuronidase in living cells and zebrafish, Sensors and 10. Xinru Xu, Mingguang Yu, Junaid Raza, Huanlu Song, Lin Gong, Wenqing Pan, Study of the mechanism of flavor compounds formed via taste-active peptides in bovine bone protein extract, LWT, Volume 137, 2021, 110371, ISSN 0023-6438, https://doi.org/10.1016/j.lw 11. [IF=7.46] Xiaokui Huo et al."A highly selective ratiometric fluorescent probe for real-time imaging of β-glucuronidase in living cells and zebrafish."Sensor Actuat B-Chem. 2018 Jun;262:508 12. [IF=5.923] Cuihua Chen et al."Variations in Physiology and Multiple Bioactive Constituents under Salt Stress Provide Insight into the Quality Evaluation of Apocyni Veneti Folium."Int J Mol Sci. 2018 Oct;19(10):3042 13. 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本品为白色结晶或结晶性粉末,无臭、无味。熔点185℃(分解)。溶于水(3.6%,25℃),难溶于乙醇,不溶于甲醇、醚、苯、丙酮、氯仿、乙酸乙酯和冰乙酸。对酸、碱、热水不稳定,水解成L-谷氨酸。参与消化道黏膜黏蛋白构成成分氨基葡萄糖的生物合成,从而促进黏膜上皮组织的修复,有助于溃疡病灶的消除。同时,它能通过血脑屏障促进脑代谢,提高脑机能,与谷氨酸一样是脑代谢的重要营养剂。
氨基酸类药。用于低酸性、消化性溃疡。口服一次0. 5g,一日3~4次。用于改善智力发育不良儿童和精神障碍、酒精中毒、癫痫病人脑功能。每日0.1~0. 72g。
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