1,2,3-Oxadiazolium, 5-hydroxy-3-(3-methylphenyl)-, inner salt (9CI) 3-(3-Methylphenyl)sydnone 3-(m-Tolyl)sydnone 3483-17-8 4-27-00-07443 (Beilstein Handbook Reference) BRN 3672153 N-(m-Tolyl)-sydnon [German] Sydnone, 3-(3-methylphenyl)- Sydnone, 3-m-tolyl-