Propionic acid isobutyl ester Back Catalog number: 71648 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended TCDT-83 2,3,7,8-Tetrachlorodibenzothiophene, 1.2ml x 50ug/ml, toluene Price on request 673136 2,4,6-Trichlorophenol, 250mg Price on request 679896 2,4-Dichlorophenol, 100 µg/ml, Acetonitrile, 5ml Price on request