Tripalmitin
Title: Tripalmitin
CAS Registry Number: 555-44-2
CAS Name: Hexadecanoic acid 1,2,3-propanetriyl ester
Additional Names: palmitin; glyceryl tripalmitate
Molecular Formula: C51H98O6
Molecular Weight: 807.32
Percent Composition: C 75.87%, H 12.24%, O 11.89%
Line Formula: (C15H31COO)3C3H5
Literature References: Occurs in fats. Prepd from glycerol and palmitic acid in the presence of Twitchell reagent: Ozaki, Biochem. Z. 177, 159 (1926); or in the presence of trifluoroacetic anhydride: Bourne et al., J. Chem. Soc. 1949, 2976.
Properties: Needles from ether, mp 66° (occurs also in lower-melting, unstable forms). bp 310-320°; d470 0.8730; d480 0.8663. nD80 1.43807. Saponification value 208.5. Insol in water. Practically insol in alcohol (0.0043 parts/100 parts of abs alcohol at 21°). Freely sol in ether, benzene, chloroform.
Melting point: mp 66°
Boiling point: bp 310-320°
Index of refraction: nD80 1.43807
Density: d470 0.8730; d480 0.8663

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