Hexane (Solvent blank), analytical standard, for GC

1,4-Dichlorobutane 2000 µg/mL in Methanol, analytical standard (Supelco)

trans-1,4-Dichloro-2-butene in Methanol, certified reference material (Supelco)

1-Pentylamine, analytical standard

1,4-Diaminobutane, analytical standard

Valeraldehyde, analytical standard

1,2-Dimethoxyethane, analytical standard

Maleic acid, analytical standard

Fumaric acid, analytical standard

Acetic acid isobutyl ester, analytical standard