Home › Entities › (1R,2S,7S,9R,13R,17S)-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-4,14-diene-3,11,16-trione › quassin

quassin

chemical compound
Class type of: (1R,2S,7S,9R,13R,17S)-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-4,14-diene-3,11,16-trione Q2079986

Facts

11 properties
Instance of
type of chemical entity
Subclass of
(1R,2S,7S,9R,13R,17S)-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-4,14-diene-3,11,16-trione[5]
Canonical SMILES
CC1C=C(C(=O)C2(C1CC3C4(C2C(=O)C(=C(C4CC(=O)O3)C)OC)C)C)OC[3]
Chemical formula
C₂₂H₂₈O₆[4]
Described by source
Encyclopædia Britannica 11th edition
Found in taxon
Picrasma crenata, Picrasma javanica, Picrasma quassioides, Quassia africana, Quassia amara, Samadera indica[6][7][8][9][10][11]
Has characteristic
bitterness
Isomeric SMILES
C[C@@H]1C=C(C(=O)[C@]2([C@H]1C[C@@H]3[C@@]4([C@@H]2C(=O)C(=C([C@@H]4CC(=O)O3)C)OC)C)C)OC
Mass
388.189
Physically interacts with
taste receptor type 2[2]
Stereoisomer of
isoquassin
🏷️ Also known as
en nigakilactone D en quassin cs kvasin es Cuasina fa کواسین fr Nigakilactone D fr 76-78-8 fr C22H28O6 fr Quassine fr Quassinoïde it Quassina ja クァシン zh 红雀椿素 zh 苦木素
🔖 Identifiers · 23
CAS Registry Number
76-78-8
ChEBI ID
8692
ChEMBL ID
CHEMBL517016
ChemSpider ID
59014
CosIng number
79233
DSSTOX compound identifier
DTXCID701016657
DSSTox substance ID
DTXSID30878613
EC number
200-985-9
ECHA Substance Infocard ID
100.000.897
Freebase ID
/m/02dltw
Gran Enciclopèdia Catalana ID
quassina
Gran Enciclopèdia Catalana ID (former scheme)
0275120
Show all 23 identifiers +11
InChI
InChI=1S/C22H28O6/c1-10-7-14(26-5)20(25)22(4)12(10)8-15-21(3)13(9-16(23)28-15)11(2)18(27-6)17(24)19(21)22/h7,10,12-13,15,19H,8-9H2,1-6H3/t10-,12+,13+,15-,19+,21-,22+/m1/s1
InChIKey
IOSXSVZRTUWBHC-LBTVDEKVSA-N
KEGG ID
C08778
KNApSAcK ID
C00003726
LIPID MAPS ID
LMPR0106110002
Microsoft Academic ID (discontinued)
2776494308
Probes And Drugs ID
PD150670
PubChem CID
65571
SureChEMBL ID
140454
UNII
QP1YAK6QGK
UniChem compound ID
554920

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Found in taxon 3
Quassia amara, Picrasma quassioides, Picrasma crenata
Described by source 1
Encyclopædia Britannica 11th edition
Has characteristic 1
bitterness
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Summary

quassin is a type of chemical entity[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . The Molecular Receptive Ranges of Human TAS2R Bitter Taste Receptors. wikidata.org.
  2. [3] ↑ . PubChem. Retrieved . wikidata.org.
  3. [4] ↑ . PubChem. Retrieved . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . Quassinoids from Picrasma crenata. wikidata.org.
  6. [7] ↑ . New quassinoids from indonesian Picrasma javanica. Structures of javanicins E, F, G and M.. wikidata.org.
  7. [8] ↑ . Acute insecticidal activity of quassin and its congeners against the American cockroach. wikidata.org.
  8. [9] ↑ . Indole Alkaloids and Quassin from Quassia africana. wikidata.org.
  9. [10] ↑ . 2-Methoxycanthin-6-one: A New Alkaloid from the Stem Wood of Quassia amara. wikidata.org.
  10. [11] ↑ . Determination of quassin in picogram quantities by an enzyme-linked immunosorbent assay. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). quassin. Retrieved November 11, 2026, from https://4ort.xyz/entity/quassin
MLA “quassin.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Nov. 2026, https://4ort.xyz/entity/quassin.
BibTeX @misc{4ortxyz_quassin_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{quassin}}, year = {2026}, url = {https://4ort.xyz/entity/quassin}, note = {Accessed: 2026-11-11}}
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