4,4’-Methylene bis(2-chloroaniline)

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)

Amidotrizoic acid, 100µg/ml in Acetonitrile, 5ml

PCB 28, 10.0 µg/ml, Isooctane, 10ml