thiazin dyes

thi·a·zin dyes

similar to azin dyes except that one of the connecting N atoms is replaced by S; include many important biologic stains, especially hematologic, for example, azure A, azure B, and methylene blue.

thi·a·zin dyes

(thī'ă-zin dīz)
Similar to azin dyes except that one of the connecting N atoms is replaced by S; includes many important biologic stains, especially in hematology.