Instrument Standard 6 Back Catalog number: 53083 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA12082200AC 4,4'-DDT 13C12, 100µg/mL in Acetone, 1ml Price on request 52077 Instrument Standard 1 Price on request 81422 Ronnel (Fenchlorphos) Price on request