Locant

In organic chemistry, a locant is a figure to indicate the position of a functional group within a molecule. == Example == There are at least two isomers of the linear form of pentanone, a ketone that contains a chain of exactly five carbon atoms. There is an oxygen atom bonded to one of the middle three carbons (if it were bonded to an end carbon...
Found on http://en.wikipedia.org/wiki/Locant

locant

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; e.g., 5 in 5-methyluridine, S in S-adenosylmethionine. ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

locant

Type: Term Pronunciation: lō′kant Definitions: 1. 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, 5 in 5-methyluridine, S in S-adenosylmethionine.
Found on http://www.medilexicon.com/medicaldictionary.php?t=51218
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