4-Aminoazobenzene

Alachlor ESA, 1000µg/ml in MeOH, 1ml

Dicrotophos, 100 µg/ml, Ethyl acetate, 5ml

EPA 528 rev. 1.0 Internal Standard Solution 2 200µg/mL in dichloromethane; unit: 1x5mL 2081.6 2,3,4,5-Tetrachlorophenol [4901-51-3]