EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10140.18-10MG Estrone-2,4,16,16-d4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 53866-34-5 Price on request SC-477422 Mono[2-(perfluorodecyl)ethyl] Phosphate, 10:2MonoPAP, 10mg Price on request 10240.41-100MG 2,2'-Methylenebis(6-(benzotriazol-2-yl)-4-tert-octylphenol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 103597-45-1 Price on request