ethyl 3,4-dihydroxybenzoate

CHEBI:132364 ·resolve ·ANTIBACTERIAL ·EXACT SEEDED

An ethyl ester resulting from the formal condensation of the carboxy group of 3,4-dihydroxybenzoic acid with ethanol. It is the anti-oxidative component of peanut seed testa. — 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:23990
Label unavailable CHEBI:33566

Chemical structure

Computed structure properties
Molecular formula	C9H10O4
Charge	0
Average mass	182.175 Da
Monoisotopic mass	182.05791 Da
Source	ChEBI
InChIKey	KBPUBCVJHFXPOC-UHFFFAOYSA-N

SMILES

CCOC(=O)c1ccc(O)c(O)c1

InChI

InChI=1S/C9H10O4/c1-2-13-9(12)6-3-4-7(10)8(11)5-6/h3-5,10-11H,2H2,1H3

Also called

3,4-dihydroxybenzoic acid ethyl ester (EXACT_SYNONYM)— chebi
EDHB (EXACT_SYNONYM)— chebi
ethyl protocatechuate (EXACT_SYNONYM)— chebi
protocatechuic acid ethyl ester (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:3943-89-3
reaxys:2097435

Patents and articles

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

wikipedia.en:Ethyl_protocatechuate

Activity roles

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

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:132364`	ethyl 3,4-dihydroxybenzoate	`antibioticmech:chebi-a742f93719`	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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