containing a heterocyclic ring

Introduced: January 1980

Last revised: January 2006

Full Title

Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form > Treatment of tobacco products or tobacco substitutes > by chemical substances > by organic substances > containing a heterocyclic ring

Classification Context

Section:: HUMAN NECESSITIES
Class:: TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
Subclass:: MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF

2 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

A24B 15/38 having only nitrogen as hetero-atoms
A24B 15/4 having only oxygen or sulfur as hetero-atoms