Internal standard 3, 2000g/ml in MeOH, 1ml

9,10-Dinitroanthracene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 33685-60-8

Heptachlor-exo-epoxide (cis-), 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 28044-83-9

2,2',4,4'-Tetrabromo-6-methoxydiphenyl ether, 1.2ml x 50ug/ml, nonane