Thiazine dye

1,4-Thiazine

Names
IUPAC name 4H-1,4-Thiazine
Identifiers
3D model (JSmol)	Interactive image
ChemSpider	10465777
InChI InChI=1S/C4H5NS/c1-3-6-4-2-5-1/h1-5H Key: ZOXMLSDKXHNVOQ-UHFFFAOYSA-N
SMILES C\1=C\N\C=C/S/1
Properties
Chemical formula	C4H5NS
Molar mass	99.15 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

Thiazine /ˈθaɪəziːn/ is an organic compound containing a ring of four carbon, one nitrogen and one sulfur atom. There are three isomers of thiazine, 1,2-thiazine, 1,3-thiazine, and 1,4-thiazine, which differ by the arrangement of the nitrogen and sulfur atoms in the ring.

Derivatives of thiazine, often referred to as thiazines, are used for dyes, tranquilizers and insecticides.