Coumarin, certified, 0.25g Back Catalog number: C11735000 Availability: In the manufacturer's stock Price on request - + Recommended PCB-SS-A100 Mass-Labelled PCB Solution , 1.2ml x 100ng/ml, nonane Price on request 2220.12-100-IO 3,3',4,4',5,5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 32774-16-6 Price on request 2137.21-K-IO Tritolylphosphate (isomer mixture), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1330-78-5 Price on request