Methyl Arsonic Acid Disodium Salt (~40%), 250mg Back Catalog number: M288285 Manufacturer: TORONTO RESEARCH CHEMICALS Availability: 2 weeks Price on request - + Recommended 674056 Phenkapton, 10.0 µg/ml, Acetonitrile, 1ml Price on request MDF-2378 2,3,7,8-Tetrachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 51065 ASTM D-4815 Calibration Mix #2 Price on request