cas no 3811-73-2 1-Hydroxypyridine-2-thione sodium salt;Sodium-2-pyridinethiol-1-oxide; Sodium omadine; 2-Mercaptopyridine-N-oxide, sodium salt; N-Hydroxy-2-pyridinethione, sodium salt; 2-Pyridinethiol-1-oxide, sodium salt; Mercaptopyridine-N-oxide sodium salt; 1-Hydroxy-2-pyridinethione sodium salt;