Iohexol, analytical standard

n-Pentacontane, analytical standard (Supelco)

n-Pentacontane, analytical standard (Supelco)

Dicamba-methyl ester, analytical standard (Supelco)

Mettler-Toledo Calibration substance ME 18555, Benzoic acid

Benzoic acid 2000 µg/mL in Methylene chloride (Dichloromethane), analytical standard (Supelco)

Benzoic acid 2000 µg/mL in Methylene chloride (Dichloromethane), certified reference material (Supelco)

1-Oxo Ibuprofen, analytical standard

Benzoic acid 200 µg/mL in Methylene chloride (Dichloromethane), analytical standard (Supelco)

Benzoic acid, analytical standard