1-Ethyl-2-methylquinolinium iodide606-55-3100 % similar 1-Ethylquinolinium iodide634-35-553 % similar Quinaldine red117-92-048 % similar 3-Ethyl-2-methylbenzothiazolium iodide3119-93-548 % similar Pinacyanol605-91-440 % similar Pinacyanol2768-90-333 % similar