Abstract: Solvents useful to dissolve dyes employed in pressure-sensitive copying systems comprise aryl esters of benzoic or substituted benzoic acid having the structure: ##STR1## wherein R.sub.1 is hydrogen, methyl or ethyl; R.sub.2 is hydrogen or C.sub.1 to C.sub.9 alkyl; R.sub.3 is hydrogen, methyl or ethyl; and n is zero or 1.

Abstract: Pressure-sensitive record materials wherein a colorless or substantially colorless chromogen is reacted in the presence of a solvent with an acidic sensitizing material to form a colored mark in a pattern determined by the application of localized pressure to the record material are prepared utilizing terphenyls, partially hydrogenated terphenyls, and lower alkylated terphenyls having at least 65 percent aromaticity as the solvent for the chromogenic material. The terphenyl compounds which are liquids are useful alone or in combination with diluents to give rapid color development on both resin and clay coated papers. Compounds which are normally solids or semisolids are useful in combination with diluents where the combination is a liquid.