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 Melting point: 132-135°C(dec.)(lit.) 
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 Boiling point: 140℃ (decomposition) 
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 Density: 1.619g/ cm3AT 25°C 
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 Vapor pressure: 0-0.2Paat25℃ 
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  Refractive index: 1.4780 
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  Flash point: 157°C 
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 Storage condition: Seal in dry room temperature 
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 Solubility: 1 M NaOH: Soluble in 100mg/mL, clarified to slightly cloudy, colorless to slightly yellow 
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 Form: Liquid 
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 pKa : 2.83(25℃) 
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 Color: White 
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 PH value: 3.17(1mMsolution); 2.5 (10 mmsolution); 1.94 (100 mmsolution) 
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 Water solubility: 1400g/L(20ºC) 
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 Merck: 14,5710 
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 BRN: 1751370 
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 Stability: Stability. Incompatible with oxidant, reducing agent and base. 
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 InChIKey: OFOBLEOULBTSOW-UHFFFAOYSA-N 
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 LogP: -0.81 
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Product description:1 Used in spices, adhesives, resin additives, plating polish and other industries. 3 Intermediate of fungicide oryzoline, also intermediate of plant growth regulator indole ester. 4 Mainly used in spices, adhesives, resin additives, pharmaceutical intermediates, electroplating polish, explosion control agent, hot welding additives and other aspects. 5 Used in the production of Lumina, barbiturate, vitamin B1, vitamin B2, vitamin B6, phenylbutazone, amino acids, etc.