DPHP

Di(2-propylheptyl) phthalate (also known as bis(2-propylheptyl) benzene-1,2-dicarboxylate, di(propylheptyl) orthophthalate, or DPHP) is an organic compound with the formula C28H46O4. It is a phthalate and is the diester of phthalic acid and the 10-carbon branched-chain alcohol 2-propylheptanol. This colorless, viscous liquid is used for softening PVC plastics and is a general purpose PVC plasticizer.[2] It possesses very good plasticizing properties and may be used as a direct replacement for DEHP and DINP in many applications.

DPHP
Names
Preferred IUPAC name
Bis(2-propylheptyl) benzene-1,2-dicarboxylate
Other names
Bis(2-propylheptyl) phthalate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.053.137
EC Number
  • 258-469-4
  • InChI=1S/C28H46O4/c1-5-9-11-17-23(15-7-3)21-31-27(29)25-19-13-14-20-26(25)28(30)32-22-24(16-8-4)18-12-10-6-2/h13-14,19-20,23-24H,5-12,15-18,21-22H2,1-4H3
    Key: MTYUOIVEVPTXFX-UHFFFAOYSA-N
  • CCCCCC(CCC)COC(=O)c1ccccc1C(=O)OCC(CCC)CCCCC
Properties
C28H46O4
Molar mass 446.672 g·mol−1
Appearance Clear oily liquid[1]
Density 0.957-0.965 g/cm3[1]
< 0.01 mg/L[1]
1.482-1.484
Viscosity 120-130 mPas
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

References
  1. "Palatinol DPHP Technical Information". basf.com.
  2. "DPHP". American Chemistry Council.


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