EPA Method 551.1 Internal Standard Back Catalog number: 32103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8504.19-0.1-DS 10-Chloro-3-phenyl-4H-benzo[a]quinolizin-4-one, Comet assay grade, 0.1mM, Solvent-DMSO, Unit 1mL certan, # of units-1, Cas.no. NA Price on request CLM-7531-1.2 Endosulfan sulfate (13C9), 100µg/mL in Nonane, 1,2 Price on request 11175.7-10MG Theobromine-d3 (1-methyl-d3),neat,neat,10mg Price on request