Di-n-octyl phthalate

DnOP; formula: C24H38O4; CAS Registry Number: 117-84-0
Structure of di-n-octyl phthalate
Source: PubChem
Identifier: CID 8346
URL: https://pubchem.ncbi.nlm.nih.gov/compound/8346#section=Structures

Structural isomer of DEHP

Di-n-octyl phthalate (DnOP) is a plasticizer, which use is banned in toys in the European Union (EU).

The Environmental Specimen Bank does not analyses the parent substance DnOP in human samples, but its main metabolite MnOP.


  • MnOP
    Mono-n-octyl phthalate is a primary metabolite of DnOP.


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

Sampling area

Sampling period

2007 - 2015