2,2',3,3',5,5',6,6'-Octachlorobiphenyl (202)

2,4,6-Tribromophenol

Bromdiolone-d5 (phenyl-d5) (mixture of diastereomers),100 µg/mL,acetonitrile,1mL,

4-(Methylsulfonyl)-2-nitrobenzoic acid, 100mg