Herbicides Mix #2 - Free Acids

2,2',3,3',4,4',6-Heptabromodiphenyl ether, 1.2ml x 50ug/ml, nonane

Mg, 1000 µg/mL in 2% HNO3, 100ml

4-Amino-2´,3-dimethylazobenzene, certified, 0.25g