Description Catalogue Number 107233 Product Information CAS number 77-09-8 EC index number 604-076-00-1 EC number 201-004-7 Grade ACS,Reag. Ph Eur Hill Formula C₂₀H₁₄O₄ Molar Mass 318.32 g/mol HS Code 2932 20 10 Structure formula Image Applications Application Phenolphthalein indicator ACS,Reag. Ph Eur. CAS 77-09-8, molar mass 318.32 g/mol. Physicochemical Information Density 1.296 g/cm3 (20 °C) Melting Point 263.7 °C Vapor pressure <0.00001 Pa (50 °C) Bulk density 350 - 450 kg/m3 Solubility 3.36 mg/l Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H350: May cause cancer. H341: Suspected of causing genetic defects. H361f: Suspected of damaging fertility. Precautionary Statement(s) P201: Obtain special instructions before use. P260: Do not breathe dust. P308 + P313: IF exposed or concerned: Get medical advice/ attention. RTECS SM8380000 Storage class 6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects WGK WGK 3 highly 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 Toxic Categories of danger carcinogenic, toxic for reproduction, mutagenic R Phrase R 45-62-68 May cause cancer.Possible risk of impaired fertility.Possible risk of irreversible effects. S Phrase S 53-45 Avoid exposure - obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). Storage and Shipping Information Storage Storage temperature: no restrictions. Specifications Identity (UV/VIS-Spectrum) passes test Appearance White to yellowish white powder Clarity of the alkoholic solution (10 g/l ethanol) passes test Absorption maximum λmax. (buffer pH 9.8) 551 - 554 nm Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; buffer pH 9.8; calculated on dried substance) 700 - 750 Transition range pH 8.2 - pH 9.8 almost colorless - red-violet Transition range (according to ACS) passes test Transition interval (according Reag. Ph. Eur.) passes test Loss on drying (105 °C) ≤ 1 %
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