Abstract
The relationship between pKa and skin irritation in humans was studied for a homologous series of benzoic acid derivatives with predicted permeation through human skin at comparable rates (15-90 μg/cm2/hr). Skin irritation and pKa are strongly correlated, and, for pKa ≤4, skin irritation rapidly increases. Laser Doppler velocimetric assessment of skin blood flow, color meter readings, erythema, edema, and the primary irritation index are all linearly correlated and related to pKa; erythema at 24 hr appears to be the most sensitive variable.
Original language | English |
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Pages (from-to) | 481-492 |
Number of pages | 12 |
Journal | Cutaneous and Ocular Toxicology |
Volume | 8 |
Issue number | 4 |
DOIs | |
Publication status | Published - 31 Dec 1989 |
Bibliographical note
Funding Information:RHG is the recipient of a special Emphasis Research Career Award (KOl-OH-00017) from the National Institute of Occupational Safety and Health. He is supported in part by NIH Grant GM-33395.
ASJC Scopus subject areas
- Toxicology