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L-Glutamine solution

200 mM, Hybri-Max, sterile-filtered, suitable for hybridoma

L-Glutamine for cell culture
CAS Number:
MDL number:
PubChem Substance ID:

Quality Level






≥99% (TLC)




cell culture | hybridoma: suitable


endotoxin, tested


clear colorless

shipped in

dry ice

storage temp.


SMILES string




InChI key


Gene Information

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General description

L-glutamine is an essential amino acid that is a crucial component of culture media that serves as a major energy source for cells in culture. L-glutamine is very stable as a dry powder and as a frozen solution. In liquid media or stock solutions, however, L-glutamine degrades relatively rapidly. Optimal cell performance usually requires supplementation of the media with L-glutamine prior to use.

Preparation Note

Prepared in cell culture grade water.

Legal Information

Hybri-Max is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

  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. Why is there a precipitate in the 200 mM L-glutamine solution, products G7513 and G2150, after thawing at room temperature?

    L-Glutamine, 200 mM solution, tends to precipitate in solution when chilled.  After thawing, it will be an opalescent solution.  If allowed to settle, there can be some crystalline insolubles at the bottom of the bottle.The product should be warmed to 37°C for complete solubilization.  To limit the number of times the product needs to be warmed to 37°C, the product can be divided into working aliquots which are stored at -20°C and used as needed.  This will expose the product to the minimal amount of warming cycles.  

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

    Ask a Scientist here.

Abraham L Moure et al.
Journal of medicinal chemistry, 63(9), 4732-4748 (2020-04-11)
Screening of a GSK-proprietary library against intracellular Mycobacterium tuberculosis identified 1, a thioalkylbenzoxazole hit. Biological profiling and mutant analysis revealed that this compound is a prodrug that is bioactivated by the mycobacterial enzyme MymA. A hit-expansion program including design, synthesis
Goonho Park et al.
Cell reports, 31(13), 107839-107839 (2020-07-02)
Amyloid β-protein (Aβ) toxicity is hypothesized to play a seminal role in Alzheimer's disease (AD) pathogenesis. However, it remains unclear how Aβ causes synaptic dysfunction and synapse loss. We hypothesize that one mechanism of Aβ-induced synaptic injury is related to
Extra glutamine increases mortality in critically ill adults.
BMJ (Clinical research ed.), 346, f2527-f2527 (2013-04-26)
Chao Yue et al.
The American surgeon, 79(5), 506-513 (2013-05-03)
The objective of this study was to evaluate the impact of perioperative glutamine-supplemented parenteral nutrition (GLN-PN) on clinical outcomes in patients undergoing abdominal surgery. MEDLINE, EMBASE, and the Cochrane Controlled Clinical Trials Register were searched to retrieve the eligible studies.
[Intensive care: does administration of glutamine and antioxidants make sense? Supplementation of glutamine only in special cases].
M Hecker et al.
Deutsche medizinische Wochenschrift (1946), 138(25-26), 1344-1344 (2013-06-14)

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