WS Nitrosamines Back Catalog number: 38339 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675307 Atrazine-desisopropyl, 100 µg/ml, Acetonitrile, Price on request 1230.26-10-IO d2 C26 Triaromatic Sterane, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 95589 Petroleum Marker Standard Price on request