Pyrene Back Catalog number: X9186 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1091.14-K-IO 4-Methylfluorene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1556-99-6 Price on request 32103 EPA Method 551.1 Internal Standard Price on request M326035 6a-Methyl Prednisone 21-Acetate, 5mg Price on request