Acids Standard

2-Ethoxy-3-methyl- and 2-ethoxy-5-methylpyrazine, Iosmer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

Non-Derivatives Mix #2

alpha-HCH, 100 µg/ml, Ethyl acetate, 5ml