《英文msh词典》Heterocyclic Cpds,1-Ring
[入口词] Heterocyclic Cpds,1-Ring
[主题词] Heterocyclic Compounds,1-Ring
[英文释义] A class of organic compounds containing a ring structure made up of more than one kind of atom,usually carbon plus another atom. The ring structure can be aromatic or nonaromatic.