Ethylsulfate sodium salt

3,3',4,5'-Tetrabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Methyl 9-cis-eicosenoate , 1000µg/ml in Isooctane, 1ml

4-Chlorophenol, 10 µg/ml, Methanol, 10ml