pH 7.0 Standard @ 25°C

1,4-Dioxane

1,2,3,4,7-Pentachlordibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no.

17?(H),21?(H)-(22RS)-Trishomohopane,100 µg/mL,isooctane,1mL,