Ropak Laboratories: The Irvine chemical and compound...

Ropak Laboratories: The Irvine chemical and compound toxicity testing company reported a first-quarter loss of $906,826, contrasted with earnings of $13,685 for the like period last year. Revenue for the quarter ended May 31 rose slightly to $280,869 from $276,810. The 1991 first-quarter results include a one-time accounting charge of $386,771.