A federal judge in Pennsylvania threw out a proposed benzene class action over a lack of standing after concluding the plaintiff failed to assure the court that the products she purchased were contaminated.

In a Thursday decision, U.S. District Judge John M. Gallagher of the Eastern District of Pennsylvania granted Lake Consumer Products Inc.'s motion to dismiss plaintiff Lorisa Pineda's class action suit over allegations the company's coal tar shampoo products she purchased contained benzene, an alleged human carcinogen. In Pineda v. Lake Consumer Products, the court concluded Pineda's claims regarding the presence of benzene in the defendants' products weren't particularized enough to survive the motion to dismiss.