2,4,4'-Tribromodiphenyl ether, 1.2ml x 50ug/ml, nonane

4,4'-Dihydroxybiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 92-88-6

Primisulfuron methyl

EN 15721 Internal Standard Stock Solution, procedure B 1382.2 Ethanol 16mL 8919.5 4-Methyl-2-pentanol 160µL Gives a concentration of approx. 8mg/mL