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Britannica 11th
Encyclopaedia Britannica · 11th edition
Thiazines
Britannica 11thTHIAZINES, in organic chemistry, a series of cyclic compounds containing a ring system of four carbon atoms, one nitrogen and one sulphur atom. These may be grouped in three ways, giving the following skeletal structures: — (L) c-c N ccs (II) (1L) c c-s C'NC c ...
Vol. 26, pp. 844-845
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