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L-Glutamic acid CAS # 56-86-0

Chemical Property:

Molecular Formula C5H9 NPO 4
Molar Mass 147.13 Nws
Qhov ntom 1.54 g / cm3 ntawm 20 ° C
Melting Point 205 ° C (Lub Kaum Ob Hlis) (lit.)
Boling Point 267.21°C (kev kwv yees)
Kev sib hloov tshwj xeeb (α) 32 º (c = 10,2N HCl)
Flash Point 207.284°C dej
JECFA Number 1420
Dej Solubility 7.5 g / L (20 ºC)
Solubility Soluble nyob rau hauv hydrochloric acid dej
Vapor Siab 0 mmHg ntawm 25 ° C
Qhov tshwm sim Crystallization
Xim Dawb
Qhov siab tshaj plaws wavelength (λmax) ['λ: 260 nm Amax: 0.1',
, 'λ: 280 nm Amax: 0.1']
Merck 14, 4469 ib
BRN 1723801 ib
pKa 2.13 (ntawm 25 ℃)
PH 3.0-3.5 (8.6g / l, H2O, 25 ℃)
Kev cia khoom 2-8 ° C
rhiab heev Yooj yim absorbing noo noo
Refractive Index 1.4300 (kwv yees)
MDL PAB 00002634
Physical thiab Chemical Properties Dawb los yog tsis muaj xim scaly crystals. Me ntsis acidic. Qhov ceev 1.538. Sublimation ntawm 200 ° C. Decomposition ntawm 247-249 ° C. Me ntsis soluble nyob rau hauv dej txias, soluble nyob rau hauv boiling dej, insoluble nyob rau hauv ethanol, ether thiab acetone. Yuav kho tus kab mob siab Coma.glutamine acid
Siv Ib qho ntawm cov ntsev ntsev-sodium glutamate siv los ua cov khoom noj khoom haus, cov khoom uas muaj tsw thiab tsw qab.

Product Detail

Khoom cim npe

Hazard Cov Cim Xi-xaj
Risk Codes 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij.
Kev nyab xeeb piav qhia S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
S36 - Hnav khaub ncaws tiv thaiv zoo.
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
WGK Germany 2
RTECS LZ9700000
FLUKA BRAND F CODE 10
TSCA Yog lawm
HS Code 29 224 200 ib
Toxicity LD50 qhov ncauj hauv Luav:> 30000 mg / kg

 

Taw qhia

Glutamic acid yog ib qho tseem ceeb heev amino acid uas muaj cov khoom nram qab no:

 

Cov khoom siv tshuaj: Glutamic acid yog cov hmoov dawb crystalline uas yooj yim soluble hauv dej. Nws muaj ob pawg ua haujlwm, ib qho yog pawg carboxyl (COOH) thiab lwm qhov yog pawg amine (NH2), uas tuaj yeem koom nrog ntau yam tshuaj lom neeg ua kua qaub thiab hauv paus.

 

Physiological zog: Glutamate muaj ntau yam haujlwm tseem ceeb hauv cov kab mob muaj sia. Nws yog ib qho ntawm cov txheej txheem hauv tsev uas tsim cov proteins thiab koom nrog kev tswj hwm ntawm cov metabolism thiab kev tsim cov zog hauv lub cev. Glutamate kuj yog ib qho tseem ceeb ntawm cov neurotransmitters uas tuaj yeem cuam tshuam cov txheej txheem neurotransmission hauv lub hlwb.

 

Txoj kev: Glutamic acid tuaj yeem tau los ntawm cov tshuaj synthesis lossis muab rho tawm los ntawm cov khoom siv ntuj. Cov txheej txheem ntawm cov tshuaj synthesis feem ntau koom nrog cov organic synthesis cov tshuaj tiv thaiv, xws li cov tshuaj tiv thaiv condensation ntawm cov amino acids. Ntuj qhov chaw, ntawm qhov tod tes, feem ntau yog tsim los ntawm fermentation los ntawm cov kab mob (xws li E. coli), uas yog ces muab rho tawm thiab purified kom tau glutamic acid nrog ntau purity.

 

Cov ntaub ntawv kev nyab xeeb: Glutamic acid feem ntau suav hais tias muaj kev nyab xeeb thiab tsis muaj tshuaj lom thiab tuaj yeem metabolized ib txwm los ntawm tib neeg lub cev. Thaum siv glutamate, nws yog ib qho tsim nyog yuav tsum ua raws li lub hauv paus ntsiab lus ntawm kev sib haum xeeb thiab ceev faj txog kev noj ntau dhau. Tsis tas li ntawd, rau cov neeg tshwj xeeb (xws li cov menyuam mos, cov poj niam cev xeeb tub, lossis cov neeg muaj kab mob tshwj xeeb), nws yuav tsum tau siv raws li kev qhia ntawm tus kws kho mob.


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