Di-n-octyl phthalate

DnOP; formula: C24H38O4; CAS Registry Number: 117-84-0
Structure of Di-n-octyl phthalate
Source: PubChem

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.


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

Sampling area

Sampling sites (humans) 4 university cities as sampling areas.

Sampling period

2007 - 2015