1,2,3,4-Tetrahydronaphthalene, certified, 50mg Back Catalog number: C20940000 Availability: In the manufacturer's stock Price on request - + Recommended 3309.19-100-CY Allethrin Price on request 30070 EPA Method 502/524 Surrogate Standard #1 Price on request 70515 2,3,6-Trichlorophenol Price on request