WP Trace Elements Back Catalog number: 55025 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71892 4-Methyldibenzothiophene Price on request XA11322500AL Chloridazon-methyl-desphenyl, 100µg/mL in Acetonitrile, 1ml Price on request 66087 2,2',3,4,5'-Pentachlorobiphenyl (87) Price on request