EPA Method 524 & 624 - Internal Standard Back Catalog number: 19494 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3865.45-100-AC Solanine, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 20562-02-1 Price on request 11735.12-100-IO 2,2',3,3',5,5'-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 53045 Calibration Standard Mix 3 Price on request