Iowa BTEX Back Catalog number: 51181 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8892.10 Bentazone-14C1, 0.25mCi, Solvent-, Unit , # of units-, Cas.no. Price on request 70507 Dibromoacetonitrile Price on request 10689.52-10-ME Microcystin LF Price on request