2,4-DB methyl ester Back Catalog number: 70931 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675883 Pipemidic acid, 250mg Price on request PCB-SS-A Mass-Labelled PCB Solution, 1.2ml x 1000ng/ml, nonane Price on request 56161 Hexavalent Chromium (Cr 6+) Price on request