Petroleum Marker Standard Back Catalog number: 95589 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MOPCB-5002S 2-Methoxy-2',3',5,5',6'-pentachlorobiphenyl, 100µg/ml in IO, 1ml Price on request 81506 Dicamba methyl derivative Price on request 55062 WP & DMRQA Total Residual Chlorine Price on request