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Details

Stereochemistry ABSOLUTE
Molecular Formula C92H148O46
Molecular Weight 1990.1319
Optical Activity UNSPECIFIED
Defined Stereocenters 51 / 51
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of QS-21-APIOSE ISOMER

SMILES

[H][C@@](C[C@H](O)CC(=O)O[C@@]([H])(C[C@H](O)CC(=O)O[C@H]1[C@@H](C)O[C@@H](OC(=O)[C@]23CCC(C)(C)C[C@@]2([H])C4=CC[C@]5([H])[C@@]6(C)CC[C@H](O[C@]7([H])O[C@@H]([C@@H](O)[C@H](O[C@]8([H])OC[C@@H](O)[C@H](O)[C@H]8O)[C@H]7O[C@]9([H])O[C@H](CO)[C@H](O)[C@H](O)[C@H]9O)C(O)=O)[C@@](C)(C=O)[C@]6([H])CC[C@@]5(C)[C@]4(C)C[C@H]3O)[C@H](O[C@]%10([H])O[C@@H](C)[C@H](O[C@]%11([H])OC[C@@H](O)[C@H](O[C@]%12([H])OC[C@](O)(CO)[C@H]%12O)[C@H]%11O)[C@@H](O)[C@H]%10O)[C@H]1O)[C@@H](C)CC)(O[C@@H]%13O[C@@H](CO)[C@H](O)[C@H]%13O)[C@@H](C)CC

InChI

InChIKey=DRHZYJAUECRAJM-DWSYSWFDSA-N
InChI=1S/C92H148O46/c1-13-36(3)46(126-54(102)25-41(98)24-47(37(4)14-2)127-80-62(110)58(106)49(30-94)128-80)23-40(97)26-55(103)131-69-39(6)125-82(73(65(69)113)136-79-64(112)60(108)68(38(5)124-79)132-78-67(115)70(45(100)32-122-78)133-84-75(116)91(120,34-96)35-123-84)138-85(119)92-22-21-86(7,8)27-43(92)42-15-16-51-87(9)19-18-53(88(10,33-95)50(87)17-20-89(51,11)90(42,12)28-52(92)101)130-83-74(137-81-63(111)59(107)57(105)48(29-93)129-81)71(66(114)72(135-83)76(117)118)134-77-61(109)56(104)44(99)31-121-77/h15,33,36-41,43-53,56-75,77-84,93-94,96-101,104-116,120H,13-14,16-32,34-35H2,1-12H3,(H,117,118)/t36-,37-,38-,39+,40-,41-,43-,44+,45+,46-,47-,48+,49-,50+,51+,52+,53-,56-,57-,58-,59-,60-,61+,62+,63+,64+,65-,66-,67+,68-,69-,70-,71-,72-,73+,74+,75-,77-,78-,79-,80+,81-,82-,83+,84-,87-,88-,89+,90+,91+,92+/m0/s1

HIDE SMILES / InChI

Molecular Formula C92H148O46
Molecular Weight 1990.1319
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 51 / 51
E/Z Centers 0
Optical Activity UNSPECIFIED

QS-21 is a purified soapbark tree (Quillaja saponaria) extract that enhances the ability of the immune system to respond to vaccine antigens. QS-21 is a promising adjuvant candidate for use in humans due to the ease of purification, its improved safety profile, and its ability to enhance cellular and humoral immunogenicity. The mechanism of action of QS-21 was speculated to be similar to QA, forming complexes with cholesterol that intercalate into the cell membrane lipids. This intercalation creates pores in the membrane to accelerate the uptake of a co-delivered antigen by the antigen presenting cells. Multiple clinical trials using QS-21 as an adjuvant, demonstrated satisfactory safety profiles and enhanced immunogenicity in immunocompromised volunteers

Originator

Sources: Journal of Immunology (1991), 146, (2), 431-7.

Approval Year

PubMed

PubMed

TitleDatePubMed
Patents

Patents

Sample Use Guides

100 microg five injections each during weeks 1, 2, 3, 7, and 19.
Route of Administration: Other
Substance Class Chemical
Created
by admin
on Sat Dec 16 15:04:32 GMT 2023
Edited
by admin
on Sat Dec 16 15:04:32 GMT 2023
Record UNII
3LHL0S9KBM
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
QS-21-APIOSE ISOMER
Common Name English
SAPONIN QA 21V1
Common Name English
QA-21V1
Common Name English
QS-21V1
Common Name English
QA 21V1
Common Name English
.BETA.-D-GLUCOPYRANOSIDURONIC ACID, (3.BETA.,4.ALPHA.,16.ALPHA.)-28-((O-D-APIO-.BETA.-D-FURANOSYL-(1->3)-O-.BETA.-D-XYLOPYRANOSYL-(1->4)-O-6-DEOXY-.ALPHA.-L-MANNOPYRANOSYL-(1->2)-4-O-(5-((5-(.ALPHA.-L-ARABINOFURANOSYLOXY)-3-HYDROXY-6-METHYL-1-OXOOCTYL)OX
Systematic Name English
Code System Code Type Description
PUBCHEM
73652135
Created by admin on Sat Dec 16 15:04:32 GMT 2023 , Edited by admin on Sat Dec 16 15:04:32 GMT 2023
PRIMARY
CAS
141256-04-4
Created by admin on Sat Dec 16 15:04:32 GMT 2023 , Edited by admin on Sat Dec 16 15:04:32 GMT 2023
PRIMARY
EPA CompTox
DTXSID601318719
Created by admin on Sat Dec 16 15:04:32 GMT 2023 , Edited by admin on Sat Dec 16 15:04:32 GMT 2023
PRIMARY
FDA UNII
3LHL0S9KBM
Created by admin on Sat Dec 16 15:04:32 GMT 2023 , Edited by admin on Sat Dec 16 15:04:32 GMT 2023
PRIMARY
Related Record Type Details
PARENT -> CONSTITUENT ALWAYS PRESENT