62625-31-4 EINECS 263-656-9 Phenol, 4,4'-(2,2-dioxido-3H-1,2-benzoxathiol-3-ylidene)bis(3-methyl-, monosodium salt Sodium hydrogen 4,4'-(3H-1,2-benzoxathiol-3-ylidene)bis(3-methylphenolate) S,S-dioxide