ExplorEnz - The Enzyme Database: 1.1.1.1 IUBMB Enzyme Nomenclature: 1.1.1.1 ExPASy - ENZYME nomenclature database: 1.1.1.1 UM-BBD (Biocatalysis/Biodegradation Database): 1.1.1.1 BRENDA, the Enzyme Database: 1.1.1.1 CAS: 9031-72-5