16915-79-0 2-(Hydroxymethyl)-3-methylquinoxaline N,N'-dioxide 2-Quinoxalinemethanol, 3-methyl-, 1,4-dioxide 3-Methyl-2-quinoxalinemethanol 1,4-dioxide 3-Methyl-2-quinoxalinylmethanol N(sup1),N(sup4)-dioxide GS-7443 Mequidox NSC352521