n-Hexane,96%,for GC residue analysis -producator Scharlau assay (G.C.): min. 96 % identity (IR-spectrum): passes test density (20o/4o): 0,659 - 0,662 residue on evaporation: max. 0,0001 % water (K.F.): max. 0,01 % Suitable for organohalogenated pesticide and dioxins, furans and PCBs residue analysis ECD, from 1,2,4-trichlorobenzene to decachlorobiphenyl, no peaks are obtained greater than 3 pg/ml as lindane. No peaks are obtained in vicinity of 2,4,5-trichlorobiphenyl. Acetonitril gradient grade for liquid chromatography LiChrosolv® Reag. Ph Eur,CAS 75-05-08, molar mass 41.05 g/mol, and chemical formula CH3CN -cod 1000301000