Methyl groups o- or p- to alkoxy groups can be selectively oxidized to the aldehyde by potassium peroxydisulfate in the presence of Cu(II): Synthesis, 723 (1987)./n
Hazard Statements: H227
Precautionary Statements: P210u-P280a-P370+P378a-P403+P235-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Wear protective gloves and eye/face protection. In case of fire: Use for extinction: CO2, powder or water spray. Store in a well-ventilated place. Keep cool. Dispose of contents/container in accordance with local/regional/national/international regulations.