Prothiofos, 100 µg/ml, Ethyl acetate, 5ml

1,2,3,4,7,8,9-Heptachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Estrone-2,4,16,16-d4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 53866-34-5

Bis(4-hydroxyphenyl) Sulfone (d4major), 2,5mg (Bisphenol S-d4)