Synonyms:

3, 4-DIHYDROXYLBENZALDEHYDE;3,4－Dihydroxybenzyl aldehyde;pyrocatechualdehyde;3,4-DIHYDROXYBENZALDEHYDE (PROTOCATECHUIC ALDEHYDE);3,4-Dihydroxybenzaldehyde ,98%;4-Formylcatechol;3,4-Dihydroxybenzaldehyde,97%;PROTOPINE(RG)

Canonical SMILES: C1=CC(=C(C=C1C=O)O)O

HS Code: 29124900

Density:1.2667(roughestimate)

Boiling Point:213.5°C(roughestimate)

Refractive Index:1.4600(estimate)

Melting Point: 150-157 °C(lit.)

Storage: 2-8°C

PKA: pK(25°)7.55

Appearance: CrystallinePowder

Hazard Codes: Xi

Risk Statements:  36/37/38-22

Safety Statements: 26-36-37/39

WGK Germany: 3