CONSHOHOCKEN, Pa.--(BUSINESS WIRE)--Instem, a leading provider of early drug development software solutions, announced today that WuXi AppTec (WuXi) has purchased the Provantis™ preclinical solution for its world-class facility in Suzhou, China. WuXi will be deploying integrated modules for its General Toxicology, Clinical Pathology, Pathology and Formulations Departments for test item control.