o-Toluidine, 100 µg/ml, Acetonitrile, 1ml

4-Nonylphenol diethoxylate, mixture of nonylisomers,100 µg/mL,MeOH,1mL,

2,4,4'-Tribromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Vitamin K1 (contains up to 20% cis isomer), 100mg