EPA 1638Mix A Back Catalog number: 52144 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1647.7-5ML Pentafluorobenzoyl chloride, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 2251-50-5 Price on request 72036 Diphenyl ether-d10 Price on request 3410.12-100 Flurochloridone, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 61213-25-0 Price on request