4-Methoxy-2',3',4',5'-tetrachlorobiphenyl, 100µg/ml in IO, 1ml Back Catalog number: MOPCB-4007S Availability: In the manufacturer's stock Price on request - + Recommended 90728 BTEX + MTBE Price on request 72844 Diflufenzopyr Price on request 30103 EPA Method 551.1 Internal Standard Price on request