CAS 7500-05-2 appears in our catalog under these names: 3-Hydroxy-1-methylpyridinium iodide, 95%, 3-Hydroxy-1-methylpyridinium Iodide, >95% (HPLC), 3-Hydroxy-1-methylpyridin-1-ium iodide, 95+%, 3-Hydroxy-1-methyl-pyridinium Iodide. Offered by: Combi-blocks, TRC, AmBeed, Mikromol. Available pack sizes: 1g, 5g, 250mg, 500mg, 50mg, 100mg.