Sub Group: Various Intermediates Catalog Number: 6261 Formula: C9H9NO3 CAS Number: 54-06-8 Molecular Weight: 179.2 Synonyms:3-Hydroxy-1-methyl-5,6-indolinedione, 2,3-Dihydro-3-hydroxy-1-methyl-1H-indole-5,6-dione