515.4 Stock Standard Back Catalog number: 96890 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90982 Nitrosamine Standard Price on request 678965 Pyrene, 100 µg/ml, Cyclohexane, 1ml Price on request 9392.20-50-AN 8:2 Di-PAPS, 50µg/mL, Solvent-acetonotrile, Unit 1mL, # of units-1, Cas.no. 678-41-1 Price on request