Mass-Labelled PCB Internal/Recovery Standards, 1.2ml, nonane

Phenazone-d3 (N-methyl-d3), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 65566-62-3

2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl

Tecloftalam, 50mg