1.2.3.1	aldehyde oxidase	-	
1.2.3.10	carbon-monoxide oxidase	deleted, activity due to EC 1.2.2.4	
1.2.3.11	retinal oxidase	transferred to EC 1.2.3.1	
1.2.3.12	vanillate demethylase	transferred to EC 1.14.13.82	
1.2.3.13	4-hydroxyphenylpyruvate oxidase	-	
1.2.3.14	abscisic-aldehyde oxidase	-	
1.2.3.15	(methyl)glyoxal oxidase	-	
1.2.3.2	xanthine oxidase	transferred to EC 1.1.3.22	
1.2.3.3	pyruvate oxidase	-	
1.2.3.4	oxalate oxidase	-	
1.2.3.5	glyoxylate oxidase	-	
1.2.3.6	pyruvate oxidase (CoA-acetylating)	-	
1.2.3.7	indole-3-acetaldehyde oxidase	-	
1.2.3.8	pyridoxal oxidase	-	
1.2.3.9	aryl-aldehyde oxidase	-