Heterocyclic Compounds,2 Ring

《英文msh詞典》Heterocyclic Compounds,2 Ring
[入口詞] Heterocyclic Compounds,2 Ring
[主題詞] Heterocyclic Compounds,2-Ring
[英文釋義] A class of organic compounds containing two ring structures,one of which is made up of more than one kind of atom,usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic.