TOW (& Answer)...

This week’s question was what is propylparaben?  Propylparaben is used in food and pharmaceutical products as a preservative, fungicide, and mold preventer. It is approved by the FDA and is mildly toxic if swallowed in excessive quantities.  It is an allergen and could cause allergic reaction.

The question (& answer) were taken from p. 220 of 1,001 Chemicals in Everyday Products by Grace Ross Lewis.  The book was published in 1194 by Van Nostrand Reinhold.