EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3781.9-K-IO 2-Isobutyl-3-methylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 13925-06-9 Price on request 8502.23-0.1-DS (S)-1-[(10-Chloro-4-oxo-3-phenyl-4H-benzo[a]quiniliizin-1-yl]carbonyl-2-pyrrolidinemethanol, Comet assay grade, 0.1mM, Solvent-DMSO, Unit 1mL certan, # of units-1, Cas.no. NA Price on request YA20950025AB PAH Mix-25, 2000ng/µl in Acetone/Benzene, 1ml Price on request