Dipalmitoylphosphatidylcholine

Dipalmitoylphosphatidylcholine (DPPC) is a phospholipid (and a lecithin) consisting of two C16 palmitic acid groups attached to a phosphatidylcholine head-group.

Dipalmitoylphosphatidylcholine
Names
IUPAC name
1,2-Dipalmitoylphosphatidylcholine
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.018.322
UNII
  • InChI=1S/C40H80NO8P/c1-6-8-10-12-14-16-18-20-22-24-26-28-30-32-39(42)46-36-38(37-48-50(44,45)47-35-34-41(3,4)5)49-40(43)33-31-29-27-25-23-21-19-17-15-13-11-9-7-2/h38H,6-37H2,1-5H3/t38-/m1/s1 Y
    Key: KILNVBDSWZSGLL-KXQOOQHDSA-N Y
  • InChI=1/C40H80NO8P/c1-6-8-10-12-14-16-18-20-22-24-26-28-30-32-39(42)46-36-38(37-48-50(44,45)47-35-34-41(3,4)5)49-40(43)33-31-29-27-25-23-21-19-17-15-13-11-9-7-2/h38H,6-37H2,1-5H3/t38-/m1/s1
  • O=C(OC[C@@H](OC(=O)CCCCCCCCCCCCCCC)COP([O-])(=O)OCC[N+](C)(C)C)CCCCCCCCCCCCCCC
Properties
C40H80NO8P
Molar mass 734.053 g·mol−1
Surface tension:
4.6 ± 0.5 x 10−10 M
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references

It is the main constituent of pulmonary surfactants, which reduces the work of breathing and prevents alveolar collapse during breathing. It also plays an important role in the study of liposomes and human bilayers.

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