Description Catalogue Number 106762 Synonyms 2,2-Dihydroxy-1,3-dioxohydrindene, 2,2-Dihydroxy-1,3-indandione, Indantrione hydrate, Triketohydrindene hydrate Product Information CAS number 485-47-2 EC number 207-618-1 Grade ACS,Reag. Ph Eur Hill Formula C₉H₆O₄ Molar Mass 178.15 g/mol HS Code 2914 40 90 Structure formula Image Applications Application Ninhydrin GR for analysis ACS,Reag. Ph Eur. CAS 485-47-2, pH 4.6 - 5.0 (10 g/l, H₂O, 20 °C). Physicochemical Information Melting Point 250 - 258 °C (decomposition) pH value 4.6 - 5.0 (10 g/l, H₂O, 20 °C) Bulk density 680 kg/m3 Solubility 20 g/l Toxicological Information LD 50 oral LD50 Rat 600 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. Precautionary Statement(s) P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Storage class 10 - 13 Other liquids and solids WGK WGK 2 water endangering Disposal 3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C. Safety Information Hazard Symbols Harmful Categories of danger harmful, irritant R Phrase R 22-36/37/38 Harmful if swallowed.Irritating to eyes, respiratory system and skin. Storage and Shipping Information Storage Store at +15°C to +25°C. Specifications Identity (IR-spectrum) conforms Appearance White to yellow or brownish white crystalline powder or crystals. Solubility (10 g/l, water) conforms Melting point about 250 Suitability for amino acid analysis conforms
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