7-hydroxy-3,7-dimethyl-1-octanal; formula: C10H20O2 ; CAS Registry Number: 107-75-5
Structure of 7-Hydroxycitronellal
Source: PubChem
Identifier: CID 7888
URL: https://pubchem.ncbi.nlm.nih.gov/compound/7888#section=2D-Structure

A fragrance often used in cosmetics

7-hydroxycitronellal (7-HC) is a fragrance which is often used in cosmetics and hygiene products.

7-HC has contact allergenic properties and thus has to be labeled on the product.

The metabolite of 7-HC, 7-hydroxycitronellylic acid is used for the human biomonitoring analyses.


  • 7-hydroxycitronellyl acid
    Metabolite of 7-hydroxycitronellal


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

Sampling area

Sampling period

2000 - 2018

Extended information