2,4-D methyl ester

2,2',3,4,4',5',6-Heptabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

MCPA

2,2',3,3',4',5,5',6-Octachloro-4-methoxybiphenyl, 1.2ml x 50ug/ml, nonane