1-Heptanol, 1ml

3,3',4,4'-Tetrabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

3-Chloro-1,2-propanediol-d5, 100µg/ml in MeOH, 5ml

5-Hydroxy L-Tryptophan, 250mg