4,4'-Dichloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

High Boiling Sulfur in White Oil for Diesel Fuel Analysis 2 50 ppm S in sulfur-free White Oil (20 cst); units: 1x5mL vials Benzo[b]naphtho[2,1-d]thiophene (0485,16) + Benzo[b]naphtho[2,3-d]thiophene (0484,16) (1:1)

Tris(2-butoxyethyl) phosphate,1000 µg/mL,isooctane,1mL

4,4’-DDT