2. Immunology/Inflammation
  3. Toll-like Receptor (TLR)
  4. QS-21

QS-21 is a mixture of QS-21-Xyl (250643-56-2) and QS-21-Api (141256-04-4), with a ratio of 35:65. QS-21 is an innate immune system-targeted adjuvant. QS-21 is promising for research of oncology vaccines (e.g., melanoma) and infectious disease vaccines (e.g., HIV, malaria).

For research use only. We do not sell to patients.

QS-21

QS-21 Chemical Structure

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Other Forms of QS-21:

QS-21 Related Antibodies

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Description

QS-21 is a mixture of QS-21-Xyl (250643-56-2) and QS-21-Api (141256-04-4), with a ratio of 35:65. QS-21 is an innate immune system-targeted adjuvant. QS-21 is promising for research of oncology vaccines (e.g., melanoma) and infectious disease vaccines (e.g., HIV, malaria)[1].

Molecular Weight

1990.14

Formula

C92H148O46
SMILES

O[C@H]1COC[C@@H](O)[C@@H]1O.O[C@H]2COC[C@]2(O)CO.O[C@H]([C@@H]([C@H]([C@@H](O3)C)O[C@H]4[C@@H]([C@H]([C@@H](CO4)O)O[R])O)O)[C@@H]3O[C@H]([C@H]([C@H]([C@H](O5)C)OC(C[C@@H](O)C[C@H](OC(C[C@@H](O)C[C@@H]([C@@H](C)CC)O[C@@H]6O[C@H]([C@@H]([C@H]6O)O)CO)=O)[C@H](CC)C)=O)O)[C@@H]5OC([C@]78[C@](CC(C)(CC8)C)([H])C9=CC[C@@]([C@@]%10([C@@]([C@@](C)([C@H](CC%10)O[C@H]%11[C@@H]([C@H]([C@@H]([C@H](O%11)C(O)=O)O)O[C@H]%12[C@@H]([C@H]([C@@H](CO%12)O)O)O)O[C@@H]%13O[C@@H]([C@@H]([C@@H]([C@H]%13O)O)O)CO)C=O)([H])CC%14)C)([H])[C@]%14(C)[C@@]9(C[C@H]7O)C)=O.[35%].[65%]
Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
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QS-21 Related Classifications

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The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

QS-21QS21QS 21Toll-like Receptor (TLR)QS-21-XylQS-21-Apioncology vaccinesinfectious disease vaccinesInhibitorinhibitorinhibit

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