Spiking Standard 5 Back Catalog number: 52067 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2534.12-100-ME (2RS)-2-(4-n-Propylphenyl)propanoic acid, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3585-47-5 Price on request 10635.12-50-NN 1,2,3,7,8,9-Hexachlorodibenzofuran ,50 µg/mL,n-nonane,1mL, Price on request 70336 p-Benzoquinone Price on request