EPA 1638Mix A Back Catalog number: 52144 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2196.11-K-ME 1-Methyl-5-nitronaphthalene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 91137-27-8 Price on request 95622 Semi-Volatile Mix #2 Price on request 673800 N-2,4-Dimethylphenyl-N'-methylformamidine HCl, 10m Price on request