4-Nonylphenol, mixture of isomers, "Type C"

1,2-Butanediol, certified, 0.25g

Methyl 9-cis-12-hydroxyoctadecenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 141-24-2

Theophylline, 100μg/mL in Acetonitrile, 1ml