Tetramethylpyrazine1124-11-4100 % similar Ligustrazine hydrochloride76494-51-475 % similar 2,3-Dimethylquinoxaline2379-55-747 % similar 2,3,5-Trimethylpyrazine14667-55-142 % similar 2,3-Dimethylpyrazine5910-89-440 % similar 2,3-Dimethyl-5-ethylpyrazine15707-34-336 % similar 2,3,6-Trimethylquinoxaline17635-21-136 % similar 2,4,5-Trimethylthiazole13623-11-535 % similar Trimethyloxazole20662-84-435 % similar 2,3,6-Trimethylpyridine1462-84-633 % similar 6-Azathymine932-53-632 % similar 2,6-Dimethyl-3-pyridinol1122-43-630 % similar 5,6-Dimethyluracil26305-13-530 % similar 2,6-Dimethyl-3-pyridinamine3430-33-930 % similar 4,5-Dimethyl-2-(1-methylethyl)thiazole53498-30-930 % similar