EPA Method 524.3 - Internal Standard Back Catalog number: 95488 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C175398 Cannflavin A, 1mg Price on request 9696.7-10G o-Toluenesulfonamide, neat, Solvent-neat, Unit 10g, # of units-1, Cas.no. 88-19-7 Price on request 72637 Benzo(a)anthracene-7,12-dione Price on request