If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
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About This Item
推荐产品
产品名称
L-谷氨酰胺, ReagentPlus®, ≥99% (HPLC)
质量水平
产品线
ReagentPlus®
方案
≥99% (HPLC)
表单
powder
杂质
≤0.2% free ammonia.
~0.5% Glutamic acid
颜色
white to off-white
mp
185 °C (dec.) (lit.)
溶解性
1 M HCl: 50 mg/mL, clear to slightly hazy, colorless
痕量阳离子
<0.2% (Ammonia (NH3))
应用
cell analysis
peptide synthesis
官能团
amide
储存温度
room temp
SMILES字符串
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
基因信息
rat ... Ggt1(116568)
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相关类别
一般描述
此外，L-谷氨酰胺对于维持体内氨的微妙平衡至关重要。这种平衡是防止有毒氨水平的关键。该氨基酸可促进谷氨酸转化为谷氨酰胺，这是氨调节的核心过程。L-谷氨酰胺不仅参与氮的运输和能量的产生，而且在多种代谢途径中起关键作用。它参与蛋白质的生物合成，类似于其他氨基酸。此外，它在合成核酸生产的重要成分尿素和嘌呤中起着重要作用。L-谷氨酰胺也是产生细胞能量的重要资源，与葡萄糖密切合作以达到此目的。
L-谷氨酰胺的另一个重要功能是在多种合成代谢过程中提供氮。这些过程对于构建包括嘌呤在内的关键分子至关重要，嘌呤是 DNA 产生的关键。该氨基酸还提供碳，补充柠檬酸循环，这是细胞内能量生产的核心过程。L-谷氨酰胺是一种重要的氨基酸，作为氮载体和能量来源，参与蛋白质合成和氨调节。它的多功能使其成为细胞生物学、生化研究和代谢组学研究领域的重要分子。
生化/生理作用
特点和优势
- 可用于代谢组学和生物化学研究
- 适用于多种研究应用的优质化合物
法律信息
可比产品
储存分类代码
11 - Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
历史批次信息供参考:
分析证书(COA)
其他客户在看
Chromatograms
application for HPLCapplication for HPLC-
How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Is the molecular weight of L-Glutamine 146.14 or 146.15? The label information changed.
1 answer-
Based on a molecular formula of C5H10N2O3, the molecular weight to seven significant figures is 146.1456. Over the years, this value may have been reported in Sigma-Aldrich documentation or on labels as either 146.15 (by rounding up) or 146.14 (by truncation). The material itself has not changed.
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