2,4-DB-methyl ester, 100 µg/ml, Ethyl acetate, 5

1-Butylindol,neat,neat,10mg,

4-Ethylphenol-d9-PFB, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no.

Surrogate Standard