QS-21 - Moligand™, ≥98% , CAS No.141256-04-4

CAS: 141256-04-4 Cat. No.: Q646919 Molecular Weight: 1990.13 EC Number: 814-254-2 PubChem CID: 73652135

GRADE & PURITY Moligand™, ≥98%

Synonyms

Stimulon

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

Overview

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

Application：

In vitro, QS-21 (2.5, 5, 25 μM) treatment of HUVEC and PBMC cells for 24 hours significantly reduced cell viability, with this cytotoxic effect being more pronounced in HUVEC cells[4]. QS-21 (0-50 μM) treatment of two human gastric cancer cell lines (SNU 1 and KATO III) and a normal human cell line (GES-1) for 24 hours resulted in dose-dependent toxicity in KATO III and SNU 1 cells, with IC50 values of 67μM and 13.6μM, respectively, but showed almost no cytotoxicity to GES-1 cells.
In vivo, immunization of mice with Aβ42 formulated with QS-21 adjuvant produced the highest antibody titers, followed by CFA/IFA > alum > TMG.

Specifications

Synonyms

Stimulon

Specifications & Purity

Moligand™, ≥98%

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

This product requires cold chain shipping. Ground and other economy services are not available.

Grade

Moligand™

Purity

≥98%

Names and Identifiers

• Canonical Smiles: CC[C@H](C)[C@H](C[C@@H](CC(=O)O[C@@H](C[C@@H](CC(=O)O[C@H]1[C@H](O[C@H]([C@@H]([C@H]1O)O[C@H]2[C@@H]([C@@H]([C@H]([C@@H](O2)C)O[C@H]3[C@@H]([C@H]([C@@H](CO3)O)O[C@H]4[C@@H]([C@](CO4)(CO)O)O)O)O)O)OC(=O)[C@]56CCC(C[C@H]5C7=CC[C@@H]8[C@]9(CC[C@@H]([C@@]([C@@H]9CC[C@]8([C@@]7(C[C@H]6O)C)C)(C)C=O)O[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)C(=O)O)O)O[C@H]1[C@@H]([C@H]([C@@H](CO1)O)O)O)O[C@H]1[C@@H]([C@H]([C@H]([C@H](O1)CO)O)O)O)C)(C)C)C)O)[C@@H](C)CC)O)O[C@H]1[C@@H]([C@H]([C@@H](O1)CO)O)O
• Isomeric SMILES: CC[C@H](C)[C@H](C[C@@H](CC(=O)O[C@@H](C[C@@H](CC(=O)O[C@H]1[C@H](O[C@H]([C@@H]([C@H]1O)O[C@H]2[C@@H]([C@@H]([C@H]([C@@H](O2)C)O[C@H]3[C@@H]([C@H]([C@@H](CO3)O)O[C@H]4[C@@H]([C@](CO4)(CO)O)O)O)O)O)OC(=O)[C@]56CCC(C[C@H]5C7=CC[C@@H]8[C@]9(CC[C@@H]([C@@]([C@@H]9CC[C@]8([C@@]7(C[C@H]6O)C)C)(C)C=O)O[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)C(=O)O)O)O[C@H]1[C@@H]([C@H]([C@@H](CO1)O)O)O)O[C@H]1[C@@H]([C@H]([C@H]([C@H](O1)CO)O)O)O)C)(C)C)C)O)[C@@H](C)CC)O)O[C@H]1[C@@H]([C@H]([C@@H](O1)CO)O)O
• PubChem CID: 73652135
• Molecular Weight: 1990.13

Mechanisms of Action

Chemical and Physical Properties

• Solubility: DMSO : 100 mg/mL (50.25 mM; Need ultrasonic) H2O : 50 mg/mL (25.12 mM; Need ultrasonic)
• Molecular Weight: 1990.100 g/mol
• XLogP3: -2.400
• Hydrogen Bond Donor Count: 23
• Hydrogen Bond Acceptor Count: 46
• Rotatable Bond Count: 38
• Exact Mass: 1988.92 Da
• Monoisotopic Mass: 1988.92 Da
• Topological Polar Surface Area: 717.000 Ų
• Heavy Atom Count: 138
• Formal Charge: 0
• Complexity: 4100.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 51
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1