Richem is leading chemical supplier in China for Iso butyric acid. We can provide SGS inspection mp 88-92 °C(lit.)alpha -20.8 º (c=4, H2O)FEMA 3793refractive index -21 ° (C=1, H2O)storage temp. 2-8°Csolubility H2O: 0.1 g/mL, clear, colorless to light yellowSensitive HygroscopicMerck 14,8204BRN 1723081CAS DataBase Reference Chemical PropertiesWhite powder D-Ribose