2,2',4,4'-Tetrahydroxybenzophenone, 500mg

Method 1613 Clean-up Standard, 8ng/ml in Nonane, 20ml

Eicosanoic acid (Arachidic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 506-30-9

Custom mix of thiophenes,two components in toluene: 0938.8 Benzothiophene 0.2mg/mL 0884.12 Dibenzothiophene 0.4mg/mL