pisonin B

CHEBI:67359 ·resolve ·ANTIMYCOBACTERIAL ·EXACT SEEDED

A member of the class of chromones that is chromone substituted by hydroxy groups at positions 5 and 7, a methoxy groups at position 6 and a methyl group at position 2. Isolated from Pisonia aculeata, it exhibits antitubercular activity. — ChEBI

Machine-generated and unreviewed. Identity, structure and cross-references come straight from ChEBI's and CARD's own data; no curator has signed off on this record yet.

Classification

Strictly broader compounds or drug classes this molecule belongs to.

CHEBI:23238 CHEBI:23238
CHEBI:33572 CHEBI:33572
CHEBI:35618 CHEBI:35618

Chemical structure

Computed structure properties
Molecular formula	C11H10O5
Charge	0
Average mass	222.196 Da
Monoisotopic mass	222.05282 Da
Source	ChEBI
InChIKey	WXEVCWAPVMCHML-UHFFFAOYSA-N

SMILES

COc1c(O)cc2oc(C)cc(=O)c2c1O

InChI

InChI=1S/C11H10O5/c1-5-3-6(12)9-8(16-5)4-7(13)11(15-2)10(9)14/h3-4,13-14H,1-2H3

Also called

5,7-dihydroxy-6-methoxy-2-methyl-4H-chromen-4-one (EXACT_SYNONYM)— chebi
5,7-dihydroxy-6-methoxy-2-methylchromone (EXACT_SYNONYM)— chebi

Cross-references

Equivalent identifiers for this same structure in other resources.

reaxys:19718133

Activity roles

Every antimicrobial role a source asserts for this compound — the unreduced evidence behind its antimicrobial_class.

CHEBI:33231 CHEBI:33231

Source concepts

Every upstream concept that resolved to this record. The merge is the product: this is what shows ChEBI and CARD are describing the same structure.

Upstream concepts merged into this record
Source	Native ID	Label	Minted CURIE	Version
CHEBI	`CHEBI:67359`	pisonin B	`antibioticmech:chebi-1e7f889b36`	2026-08-30

Curation history

SEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Seeded from data/raw/ inventories (CHEBI)
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories

Provenance

Seeded by scripts/seed_from_sources.py from the committed inventories in data/raw/. View the record.