Anions Mix A Back Catalog number: 59324 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1930.8-1MLX10 Heptafluorobutyric anhydride, neat, Solvent-neat, Unit 1mL, # of units-10, Cas.no. 336-59-4 Price on request 22003 EPA Method 8240A Internal Standard Price on request 93988 PAH Standard, 1000µg/ml in methylene chloride, 1ml Price on request