1.3.99.1	succinate dehydrogenase	deleted, now included with EC 1.3.5.1, succinate dehydrogenase (quinone)	
1.3.99.10	isovaleryl-CoA dehydrogenase	transferred to EC 1.3.8.4	
1.3.99.11	dihydroorotate dehydrogenase	transferred to EC 1.3.5.2	
1.3.99.12	2-methylacyl-CoA dehydrogenase	deleted. Now classified as EC 1.3.8.5, 2-methyl-branched-chain-enoyl-CoA reductase	
1.3.99.13	long-chain-acyl-CoA dehydrogenase	transferred to EC 1.3.8.8, long-chain-acyl-CoA dehydrogenase	
1.3.99.14	cyclohexanone dehydrogenase	-	
1.3.99.15	benzoyl-CoA reductase	transferred to EC 1.3.7.8	
1.3.99.16	Isoquinoline 1-oxidoreductase	-	
1.3.99.17	quinoline 2-oxidoreductase	-	
1.3.99.18	quinaldate 4-oxidoreductase	-