Medical Definition of Thiazin
1. C12H10SN2; Iminothiodiphenylimine;parent substance of a family of biological blue dyes; e.g., methylene blue, thionin, toluidine blue. (05 Mar 2000)
1. C12H10SN2; Iminothiodiphenylimine;parent substance of a family of biological blue dyes; e.g., methylene blue, thionin, toluidine blue. (05 Mar 2000)