Sodium (Na) Back Catalog number: 58111 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0177.15-500-IO 2-n-Propyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-30-1 Price on request 92790 EPA Method 8081A Pesticide Standard B Price on request 1702.9-K-AN N-Nitrosonornicotine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 808508-23-2 Price on request