Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BB-103 2,2',4,5',6-Pentabromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request C17595000 p-Toluidine, certified, 250mg Price on request 672878 Penconazole, 100mg Price on request