126598-30-9 3-(3,4,5-Trimethoxyphenyl)-7H-1,2,4-triazolo(3,4-b)(1,3,4)thiadiazine-6-acetic acid 7H-1,2,4-Triazolo(3,4-b)(1,3,4)thiadiazine-6-acetic acid, 3-(3,4,5-trimethoxyphenyl)-