dehydroacetic acid

CHEBI:137426 ·resolve ·ANTIBACTERIAL ·EXACT SEEDED

A pyran-2,4-dione substituted at position 3 by an acetyl group and at position 6 by a methyl group. A fungicide and bactericide it is used primarily in processed fruit and vegetables. — 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.

Label unavailable CHEBI:137428
Label unavailable CHEBI:17087

Chemical structure

Computed structure properties
Molecular formula	C8H8O4
Charge	0
Average mass	168.148 Da
Monoisotopic mass	168.04226 Da
Source	ChEBI
InChIKey	PGRHXDWITVMQBC-UHFFFAOYSA-N

SMILES

CC(=O)C1C(=O)C=C(C)OC1=O

InChI

InChI=1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,7H,1-2H3

Also called

3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione (EXACT_SYNONYM)— chebi
Biocide 470F (EXACT_SYNONYM)— chebi
Methylacetopyronone (EXACT_SYNONYM)— chebi

Cross-references

Identifiers for this same structure in other resources. An accession that lands on two different structures in this corpus is withheld from both rather than shown here, since it names at most one of them.

cas:520-45-6

Patents and articles

Documents about this compound. A patent covers a class and an article covers a topic; neither identifies a structure.

Activity roles

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

fungicide CHEBI:24127
antibacterial agent CHEBI:33282

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:137426`	dehydroacetic acid	`antibioticmech:chebi-d01553785a`	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
RESEEDED_FROM_SOURCES 2026-09-10 · 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 (YAML).

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