Nitrate (NO3-) as N, 100µg/ml in Water, 100ml

D5-Acetochlor ESA sodium salt, 100 µg/ml, Water,

Sildenafil citrate,1000 µg base/mL,MeOH,1mL

1,4-Dibromobenzene,1000 µg/mL,isooctane,1mL,