1,2-Ethane disulfonic acid, compd. with 5-methyl-4-phenyloxazole (1:2) 31784-93-7 5-Methyl-4-phenyloxazole 1,2-ethanedisulfonate (2:1) Oxazole, 5-methyl-4-phenyl-, 1,2-ethanedisulfonate (2:1)