Di(2-propylheptyl)phthalate (DPHP)

DPHP; phthalic acid bis(2-propylheptyl) ester; formula: C28H46O4; CAS Registry Number: 53306-54-0
Structure of di(2-propylheptyl)phthalate
Source: PubChem
Identifier: CID 92344
URL: https://pubchem.ncbi.nlm.nih.gov/compound/92344#section=2D-Structure

Analytically difficult to grasp

Di-(2-propylheptyl)phthalate (DPHP) is used as plasticizer, especially in polymers like PVC. Due to analytical difficulties within a total phthalate determination, DPHP is analysed with a specific method.

The Environmental Specimen Bank do not analyses the parent substance DPHP in human samples, but its main metabolites.


  • cx-MPHxP
    Mono(propyl-6-carboxyhexyl) phthalate is a secondary metabolite of DPHP.
    Mono(propyl-6-hydroxyheptyl) phthalate is a secondary metabolite of DPHP.
  • Oxo-MPHP
    Mono(propyl-6-oxo-heptyl) phthalate is a secondary metabolite of DPHP.


  • Student groups with an even number of female and male students at the age of 20 to 29.

Sampling area

Sampling period

1999 - 2017

Extended information