(<I>S</I>)-2,5-二氨基-5-氧代戊酸

产品名称：

56-85-9
L-Glutamine
L-Glutamic acid-5-amide, Gln
Levoglutamide
L-Glutamic acid 5-amide
(S)-2,5-Diamino-5-oxopentanoic acid
L-谷氨酰胺
L-谷氨酸-5-酰胺
左谷酰胺
(S)-2,5-二氨基-5-氧代戊酸

产品介绍：

产品说明

生化/生理作用

L-谷氨酰胺是一种必需氨基酸，作为细胞培养过程中主要的能量来源而成为培养基的重要组分。L-谷氨酰胺在干粉及冷冻溶液的状态下极为稳定。然而，L-谷氨酰胺在液体培养基或储存溶液中均会相对较快的降解。最佳的细胞表现通常需要在使用前向培养基中添加L-谷氨酰胺补充剂。

分析说明

Assay (perchloric acid titration, calculated on dried substance): 99.0 - 101.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine powder
Appearance of solution (25 g/l; CO₂-free water): clear and colorless
Spec. rotation (α 20/D, 100 g/l, hydrochloric acid 2 mol/l, calc. on dried substance): +31,5 to +33,0
Chloride (Cl): ≤ 200 ppm
Sulfate (SO₄): ≤ 200 ppm
Heavy metals (as Pb): ≤ 10 ppm
As (Arsenic): ≤ 5 ppm
Ca (Calcium): ≤ 10 ppm
Co (Cobalt): ≤ 5 ppm
Fe (Iron): ≤ 5 ppm
K (Potassium): ≤ 5 ppm
Mg (Magnesium): ≤ 5 ppm
Na (Sodium): ≤ 50 ppm
Zn (Zinc): ≤ 5 ppm
Ninhydrin-positive substances (LC)(any ninhydrin-positive impurity): ≤ 0.3 %
Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.1 %
Ninhydrin-positive substances (LC)(total impurities): ≤ 0.5 %
Loss on drying (105 °C; 3 h): ≤ 0.3 %

基本信息

线性分子式	H₂NCOCH₂CH₂CH(NH₂)CO₂H
分子量	146.14
Beilstein	1723797
MDL编号	MFCD00008044
EC索引号	200-292-1

产品性质

质量水平	100
形式	solid
效能	7500 mg/kg LD₅₀, oral (Rat)
pH值(酸碱度)	4.0-6.0 (20 ℃, 25 g/L in H₂O)
mp	185 ℃ (dec.) (lit.)
溶解性	100 g/L
密度	1.47 g/cm³ at 20 ℃
堆积密度	640 kg/m³
储存温度	2-30℃
SMILES string	N[C@@H](CCC(N)=O)C(O)=O
InChI	1S/C5H10N2O3/c6-3(5(9)10)1-2-4(7)8/h3H,1-2,6H2,(H2,7,8)(H,9,10)/t3-/m0/s1
InChI key	ZDXPYRJPNDTMRX-VKHMYHEASA-N

安全信息

储存分类代码	13 - Non Combustible Solids
WGK	WGK 1
闪点(F)	Not applicable
闪点(C)	Not applicable