Product No.: GL645CAS: 56-85-9In Stock
L-谷氨酰胺 L-Glutamine
L-谷氨酰胺 L-Glutamine. High purity pharma grade, widely used in the preparation of mammalian cell culture media, supporting efficient and stable cell growth. This product undergoes strict bacterial endotoxin and microbial limit controls, suitable for biologics and injectable-grade R&D with stringent pyrogen requirements.
Select Spec* COA batch numbers are updated in real-time
Select Spec
* COA batch numbers are updated in real-time5kg/Drum
$401.00
Stock: 100 unit
25kg/Drum
$1,904.75
Stock: 100 unit
Quantity
Remaining 100 unit
Selected Configuration1kg/Bag × 1
Total$109.00
Application Scenarios
CHO Cell CultureVaccine ProductionMonoclonal Antibody R&D
Quality Specifications
性状 Description
白色结晶或结晶性粉末；无臭。本品在水中溶解，在乙醇或乙醚中几乎不溶。White crystals or crystalline powder，odorless. This product is soluble in water, almost insoluble in ethanol or ether
鉴别 Identification
(1)取本品的水溶液（1→50）5ml,加稀盐酸5滴与亚硝酸钠试液1ml,应发泡；(1) Take 5ml of aqueous solution (1→50) of this product, add 5 drops of diluted hydrochloric acid and 1ml of sodium nitrite test solution, and it should be foaming; (2)取本品的水溶液（1→1000）5ml，加茚三酮试液1ml，加热3分钟，溶液显紫色. (2) Take 5ml of water solution (1→1000) of this product, add 1ml of ninhydrin test solution, heat for 3 minutes, the solution will appear purple. 本品的红外光吸收图谱应与对照的图谱（光谱集895）一致。Compare the infrared absorption spectrum of the sample with that of the standard atlas 895. 供试品溶液主峰的保留时间应与对照品溶液主峰的保留时间一致。The retention time of the major peak in the test solution should match with that of the standard solution.
比旋度 Specific optical rotation[α]D20
+6.3° ～ +7.3°
酸 度 pH
4.8 ～ 5.8
透光率 Transmittance
≥98.0%
氯化物 Chloride
≤0.02%
硫酸盐 Sulfate
≤0.02%
铁盐 Iron
≤0.001%
铵盐 Ammonium
≤0.10%
重 金属 Heavy metals
≤0.001%
砷盐 Arsenic
≤1ppm
干燥失重 Loss on Drying
≤0.30%
炽灼残渣 Residue on ignition
≤0.1%
有关物质 Related substances - 焦谷氨酸 Pyroglutamic acid
≤0.5%
有关物质 Related substances - 谷氨酸 Glutamate
≤0.5%
有关物质 Related substances - 单个杂质 Single impurity
≤0.5%
有关物质 Related substances - 其他总杂质 Total impurity
≤1.0%
含 量 Assay
99.0% ～ 101.0%
微生物限度 Microbiological examination - 需氧菌总数 Total aerobic microbial count
≤50cfu/g
微生物限度 Microbiological examination - 霉菌和酵母菌总数 Total yeasts and moulds count
≤10cfu/g
细菌内毒素 Endotoxin
＜6EU/g