beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

12-Hydroxystearic acid,1000 µg/mL,chloroform,1mL,

Chlortetracycline hydrochloride,neat,neat,250mg

3'-Fluoro-2,4,4'-trichlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 863314-89-0