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EC number: 950-112-7 | CAS number: 347377-00-8
Melting point of TMPTS is measured with an automated melting point apparatus, EZ-Melt supplied from Stanford Research Systems (Serial #97608). The EZ-Melt relies on the capillary method supported by virtually all pharmacopeia procedures for melting point determinations.
The temperature is ramped up from 70°C to 90°C at 1°C/min. The melting point value for freshly synthesized TMPTS was 81.4-84.8°C. Note the specification of melting point for TMPTS is 76 – 85°C.
Boiling point value is estimated to be 531.8±30.0 °C at 760 torr (source: SciFinder, calculated using Advanced Chemistry Development ACD/Labs Software V11.02). Due to low stability of TMPTS at higher temperatures, the boiling point of TMPTS at 760 torr was never collected. During thermogravimetric analysis, trimethylolpropane trisorbate started decomposition at 354°C and had more than 90% weight loss before 580°C when temperature was ramped up at 10°C/min.
The liquid chromatography was used for measuring water solubility in a non GLP study. Using the UPLC method, The water solubility of the test item was determined to be 3.6 µg/L at room temperature.
The partition coefficient of the test item was determined in a non GLP study similar to OECD 117. Using the HPLC method, The log Pow of the test item was determined to be 5.14.
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