Initial Check Verif. Standard 4, in 4%HNO3, 100ml

1-Chloro-2,4-dinitrobenzene, 1000µg/ml in MeOH, 1ml

Imbentin-N/020 (n = 0-4) 100mg S-4097

Teflubenzuron, 10 µg/ml, Cyclohexane, 10ml