5-Hydroxythiabendazole, 100 µg/ml, Ethyl acetate,

5-Hydroxy L-Tryptophan, 250mg

2,4-DB methyl ester, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 18625-12-2

EPA Method 507 Analyte Mix #8