QS21 saponin

QS-21-Api, an immunostimulatory saponin, could be used as a potent vaccine adjuvant. QS-21-Api stimulates Th2 humoral and Th1 cell-mediated immune responses through action on antigen presenting cells (APCs) and T cells. QS-21-Api can activate the NLRP3 inflammasome with subsequent release of caspase-1 dependent cytokines, IL-1β and IL-18.


Cat. No.: EX-A12300	Purity: >98%

	Chemical structure of QS21 saponin

For research only, Do not use for Human!

Size	Unit Price (US$)	Stock
1mg	350	In-stock
5mg	1400	In-stock
10mg	2240	In-stock
25mg	4480	In-stock
50mg	7150	In-stock
100mg	11400	In-stock

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CAS No.	141256-04-4
Purity	>98%
Formula	C92H148O46
Mol Weight	1990.132
Color	White to light yellow
State	Solid
Solubility	H2O : 46.67 mg/mL
Shelf Life	>3 years if stored properly
Storage	Powder -20°C, 3 years; In solvent -20℃ 1 month;
Shipping	Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Reference:	[1]. Fernández-Tejada A, et al. Development of Improved Vaccine Adjuvants Based on the Saponin Natural Product QS-21 through Chemical Synthesis. Acc Chem Res. 2016;49(9):1741-1756. [2]. Marty-Roix R, et al. Identification of QS-21 as an Inflammasome-activating Molecular Component of Saponin Adjuvants. J Biol Chem. 2016;291(3):1123-1136 [3]. Lacaille-Dubois MA. Updated insights into the mechanism of action and clinical profile of the immunoadjuvant QS-21: A review. Phytomedicine. 2019;60:152905.
CoA	CoA of QS21 saponin

Smiles:	C(O[C@H]1[C@H](O[C@H]2[C@H](O)[C@H](O)[C@@H](O[C@H]3[C@H](O)[C@@H](O[C@H]4[C@H](O)[C@](CO)(O)CO4)[C@H](O)CO3)[C@H](C)O2)[C@@H](O)[C@@H](OC(C[C@H](C[C@H](OC(C[C@H](C[C@H](O[C@@H]5O[C@@H](CO)[C@H](O)[C@H]5O)[C@H](CC)C)O)=O)[C@H](CC)C)O)=O)[C@@H](C)O1)(=O)[C


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