Fast red TR biochemical product blog Tags: Biochemical; Fast red TR; Fast red TR biochemical; Posted by mybiosource_staff on . The Fast red TR n/a (Catalog #MBS545325) 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:Fast red TRGrade: IndicatorCAS Number: [51503-28-7].