MOPSO biochemical product blog Tags: Biochemical; MOPSO biochemical; MOPSO; MOPSO, free acid; Posted by mybiosource_staff on . The MOPSO n/a (Catalog #MBS545289) is a Biochemical and is intended for research purposes only. The product is available for immediate purchase.To buy or view more detailed product information and pricing, please click on the technical datasheet page below:MOPSO,FREE ACIDGrade: High PurityCAS Number: [68399-77-9].