Butanoyl-CoA+FAD<=>Crotonoyl-CoA+FADH2 (Sus scrofa)
butanoyl-coa+fad<=>crotonoyl-coa+fadh2 (sus scrofa)
Butanoyl-CoA+FAD<=>Crotonoyl-CoA+FADH2 (Sus scrofa)
butanoyl-coa+fad<=>crotonoyl-coa+fadh2 (sus scrofa)