Legality of Cannabis by U.S. Jurisdiction The main article for this category is Methoxy group. Subcategories This category has only the following subcategory. P O-methylated phenols (4 C, 37 P) Pages in category "O-methylation" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. Methoxy group0–9 2'-O-methylationC Caffeoyl-CoA O-methyltransferase Catechol-O-methyltransferaseO O-methylated flavonoid O-methyltransferase