| http://www.w3.org/ns/prov#value | - p- phenylenediamine /p- phen??yl??ene??di??amine/ (fen?il-en-di??ah-men) a derivative of benzene used as a dye for hair, garments, and other textiles, as a photographic developing agent, and in a variety of other processes; it is a strong allergen, causing contact dermatitis and bronchial asthma.
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