To my knowledge, this is the first report of depigmentation of the skin caused by phenolic germicidal disinfectants. Patch tests with phenolic components of the disinfectants produced depigmentation on 12 affected workers and six volunteer controls. From my data it appears that virtually any moderately irritating phenolic compound can depigment skin, but of those tested, paratertiary butyl and amylphenol most often depigmented skin without producing toxic inflammation. These two phenols are components of many germicidal disinfectants.
Kahn G. Depigmentation Caused by Phenolic Detergent Germicides. Arch Dermatol. 1970;102(2):177-187. doi:10.1001/archderm.1970.04000080049010