Internal Standards Mix 33, 2000 ng/µl, 1ml Back Catalog number: YA08273300TO Availability: In the manufacturer's stock Price on request - + Recommended 673894 iso-Chloridazon, 50mg Price on request 30431 1,2,3-Trichlorobenzene Price on request 40060 EPA Method 8081A Pesticide Standard Price on request