Butanoyl-CoA+FAD<=>Crotonoyl-CoA+FADH2 (Canis familiaris)
butanoyl-coa+fad<=>crotonoyl-coa+fadh2 (canis familiaris)
Butanoyl-CoA+FAD<=>Crotonoyl-CoA+FADH2 (Canis familiaris)
butanoyl-coa+fad<=>crotonoyl-coa+fadh2 (canis familiaris)