Nicotinic acid, Stock solution system check EN12260

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

(+/-)-Ibuprofen-d3, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 121662-14-4

2,2-Bis(chloromethyl)-1,3-propandiol bis[bis(2-chloroethyl) phosphate],50 µg/mL,toluene,1mL,