Nonadecanoic acid-methyl ester, certified, 0.25g

Check Mix, EPA 610 8 Analytes, each concentration as listed in acetonitrile; units: 1x1mL, 5x1mL 0711.10 Naphthalene [91-20-3] 100 µg/mL 0002.12 Acenaphthylene [208-96-8] 100 µg/mL 0732.12 Acenaphthene [83

trans-Permethrin (isomer mix), 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 61949-77-7

Dichlorophen, 250mg