2’,3,4-Tribromodiphenyl ether,100 µg/mL,isooctane,1mL,

ISO 9377-2MOD Extraction Solvent Stock Solution I 20ul of n-Heptane and 20mg of n-Tetracontane solved in 1000ml n-Pentane

17-beta-Estradiol, certified, 0.25g

Quaterrylene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 188-73-8