CLP Pesticide Lab Control Standard Back Catalog number: 21061 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended TBBA 2,3,4,5-Tetrabromobenzoic acid, 1.2ml x 50ug/ml, methanol Price on request 53020 Verification II Standard 2 Price on request N496909 4-Nitrophenol-13C6, 1mg Price on request