Atrazine-desethyl-2-hydroxy, 100µg/ml in AL, 5ml

Calibration Kit for WHO & Marker PCBs; EN 1948-4:2010, 6 x 500ul, nonane

2,2',3,3',4,4',5',6-Octachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 42740-50-1

Nitro-PAH Mixture 2 2204,14 9-Nitrophenanthrene [954-46-1] 1108,13 3-Nitrofluorene [607-57-8] 1468,16 2-Nitropyrene [789-07-1] Concentration: 1000ppm each in toluene