ALL meanings of para-nitrophenol
par·a-ni·tro·phe·nol
P p - noun para-nitrophenol any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group. 1
- noun para-nitrophenol any of three water-soluble, crystalline isomers of such a derivative, having the formula C 6 H 5 NO 3 , occurring in yellow (ortho-nitrophenol) pale-yellow (meta-nitrophenol) and yellowish (para-nitrophenol) solids, used chiefly as intermediates in organic synthesis and as indicators. 1