1 DTI 3,4-dimethylthiazolium ion 1.000 2 TMT 2,3,4-trimethyl-1,3-thiazole 0.875 3 TMZ 3,4,5-trimethyl-1,3-thiazole 0.875 4 3MT 3-methylthiazolium ion 0.857 5 24T 2-amino-4-methylthiazole 0.750