Imidacloprid guanidine hydrochloride, 100 µg/ml,

2,4,6-Tribromoanisole [10 ng/mL]

Dibromomethane

EPA 528 rev. 1.0 Internal Standard Solution 1 100µg/mL in dichloromethane; unit: 1x5mL 3841.8 1,2-Dimethyl-3-nitrobenzene [83-41-0]