has role indanones colour indicator ketone hydrate beta-diketone aromatic ketone ninhydrin 1,2,3-Indantrione monohydrate 1,2,3-Indantrione, 2-hydrate 178.027 178.14150 2,2-Dihydroxy-1,3-indandione 2,2-Dihydroxyindane-1,3-dione 2,2-dihydroxy-1H-indene-1,3(2H)-dione A member of the class of indanones that is indane-1,3-dione bearing two additional hydroxy substituents at position 2. C9H6O4 CAS:485-47-2 CHEBI:86374 FEMOMIGRRWSMCU-UHFFFAOYSA-N InChI=1S/C9H6O4/c10-7-5-3-1-2-4-6(5)8(11)9(7,12)13/h1-4,12-13H MetaCyc:CPD-9188 OC1(O)C(=O)c2ccccc2C1=O PMID:25023609 PMID:25577078 PMID:25766739 PMID:25987134 PMID:26074166 Reaxys:1910963 Triketohydrindene hydrate Wikipedia:Ninhydrin chebi_ontology