EPA 1638Mix A Back Catalog number: 53144 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79320 Endosulfan II Price on request 9861.2-100MG N-Methyl-N'-nitro-N-nitrosoguanidine (wetted with ca. 50% water), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 70-25-7 Price on request 71822 1-Chloro-2,4-dinitrobenzene, 1000µg/ml in MeOH, 1ml Price on request