| 释义 |
locant
locant[′lō‚kant] (chemistry) The portion of a chemical name, usually a number or a letter, that designates the position of an atom or group of atoms in a formula unit. locant
lo·cant (lō'kant), A number or letter preceding a substituent name in the name of a complex chemical that specifies the position (location) of the substituent on the parent molecule, for example, 5 in 5-methyluridine, S in S-adenosylmethionine. |