iBuP; p-Hydroxybenzoic acid isobutyl ester; formula: C11H14O3; CAS Registry Number: 4247-02-3
The application of iso-butyl paraben (iBuP) as a preservative in cosmetics and food is prohibited in the European Union (EU) since 2014.
Student groups with an even number of female and male students at the age of 20 to 29.
4 university cities as sampling areas.
1995 - 2012