EPA Method 8141 Standard Rev 1 Back Catalog number: 98131 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10881.18-10MG 17alpha-Estradiol-2,4-d2,neat,neat,10mg, Price on request 0041.18-10MG 5-Nitrobenzo[c]phenanthrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 64356-30-5 Price on request 59250 QC Check Sample Price on request