SEARCH Articles Figures Tables 5-Formyl-4-methyl A HYDROCARBONS A-Methyl group A-formyl Aldehydes (s. a. Aldehyde hydrocarbons (methyl Aldehydes formylation Aldehydes hydrocarbons Aldehydic Group Formyl group Hydrocarbons (methyl Hydrocarbons methyl groups Hydrocarbons, hydrocarbon aldehydes (methyl Hydrocarbons, hydrocarbon aldehydes) Hydrocarbons, hydrocarbon methyl Methyl aldehyde Methyl group Methyl groups s. a. Hydrocarbons) S 4-formyl S-Formylation S-Methylation