3,4-dihydroxybenzaldehyde

Protocatechuic aldehyde

Names
IUPAC name 3,4-dihydroxybenzaldehyde
Other names Protocatechualdehyde 3,4-Dihydroxybenzaldehyde Rancinamycin IV 3,4-Dihydroxybenzyl aldehyde
Identifiers
CAS Number	139-85-5 Y
3D model (JSmol)	Interactive image
ChemSpider	8438 N
ECHA InfoCard	100.004.889
PubChem CID	8768
InChI InChI=1S/C7H6O3/c8-4-5-1-2-6(9)7(10)3-5/h1-4,9-10H N Key: IBGBGRVKPALMCQ-UHFFFAOYSA-N N InChI=1/C7H6O3/c8-4-5-1-2-6(9)7(10)3-5/h1-4,9-10H Key: IBGBGRVKPALMCQ-UHFFFAOYAN
SMILES C1=CC(=C(C=C1C=O)O)O
Properties
Chemical formula	C7H6O3
Molar mass	138.12 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

Protocatechuic aldehyde is a phenolic aldehyde, a compound released from cork stoppers into wine.

This molecule can be used as a precursor in the vanillin synthesis by biotransformation by cell cultures of Capsicum frutescens, a type of Chili pepper. It is also found in the mushroom Phellinus linteus.