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If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

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49419

Sigma-Aldrich

L-谷氨酰胺

≥99.5% (NT), suitable for cell culture, BioUltra

别名:

(S)-2,5-二氨基-5-氧代戊酸, L-谷氨酸-5-酰胺, 左谷酰胺

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1 G
CN¥987.67

CN¥987.67

预计发货时间June 20, 2025详情

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1 G
CN¥987.67

About This Item

线性分子式:
H2NCOCH2CH2CH(NH2)CO2H
CAS号:
56-85-9
分子量:
146.14
Beilstein:
1723797
EC 号:
200-292-1
MDL编号:
MFCD00008044
UNSPSC代码:
12352209
eCl@ss:
32160406
PubChem化学物质编号:
57651187
NACRES:
NA.26

CN¥987.67

预计发货时间June 20, 2025详情

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产品名称

L-谷氨酰胺, BioUltra, ≥99.5% (NT)

产品线

BioUltra

质量水平

100

方案

≥99.5% (NT)

表单

powder

旋光性

[α]20/D +33.0±1°, c = 5% in 5 M HCl

技术

cell culture | mammalian: suitable

杂质

insoluble matter, passes filter test
≤0.5% foreign amino acids

灼烧残渣 (900 °C)

≤0.1% (as SO4)

缺失

≤0.1% loss on drying, 110 °C

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PHR1006S388985529
山梨醇 F 液 溶液 70 wt. % in H2O, Contains mainly D-sorbitol with lesser amounts of other hydrogenated oligosaccharides

309532

山梨醇 F 液 溶液

山梨醇 Pharmaceutical Secondary Standard; Certified Reference Material

PHR1006

山梨醇

D -山梨醇 ≥98% (GC), BioReagent, suitable for cell culture, suitable for plant cell culture

S3889

D -山梨醇

D -山梨醇 BioUltra, ≥99.0% (HPLC)

85529

D -山梨醇

form

viscous liquid

form

-

form

powder

form

powder

color

colorless

color

-

color

white

color

colorless

concentration

70 wt. % in H2O

concentration

-

concentration

-

concentration

-

refractive index

n20/D 1.46

refractive index

-

refractive index

-

refractive index

-

density

1.28 g/mL at 25 °C

density

-

density

-

density

-

应用

L-谷氨酰胺已用于下丘脑神经元的培养基，[1] 血清蛋白等速电泳的间隔基，[2] 各种微生物的生长需要。[3]

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。

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)

    Lot/Batch Number
    BCCM4770
    BCCK3303
    BCCG5030
    BCCB0431
    BCBR7569V

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    1. Which document(s) contains shelf-life or expiration date information for a given product?

      If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

    2. How do I get lot-specific information or a Certificate of Analysis?

      The lot specific COA document can be found by entering the lot number above under the "Documents" section.

    3. How do I find price and availability?

      There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

    4. What is the Department of Transportation shipping information for this product?

      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. 

    5. Is the molecular weight of L-Glutamine 146.14 or 146.15? The label information changed.

      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.

    6. My question is not addressed here, how can I contact Technical Service for assistance?

      Ask a Scientist here.

    Techniques for culture of hypothalamic neurons.
    C Loudes et al.
    Methods in enzymology, 103, 313-334 (1983-01-01)
    T. Yagi et al. et al.
    Electrophoresis ?83, 503-503 (1984)
    CRC Handbook of Microbiology, 4, 1-1 (1974)
    Rebekah M Samsonraj et al.
    Stem cells (Dayton, Ohio), 33(6), 1878-1891 (2015-03-11)
    This study sought to identify critical determinants of mesenchymal stem cell (MSC) potency using in vitro and in vivo attributes of cells isolated from the bone marrow of age- and sex-matched donors. Adherence to plastic was not indicative of potency
    Pablo Hernández-Varas et al.
    Nature communications, 6, 7524-7524 (2015-06-26)
    Cell-matrix adhesions are central mediators of mechanotransduction, yet the interplay between force and adhesion regulation remains unclear. Here we use live cell imaging to map time-dependent cross-correlations between vinculin-mediated tension and adhesion complex area, revealing a plastic, context-dependent relationship. Interestingly
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    Chromatograms

    application for HPLC

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