Mixed Calibration Standard 5 Back Catalog number: 52057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2549.9-100-ME N-(4-Hydroxyphenyl)-propionamide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1693-37-4 Price on request 675377 Cyphenothrin, 100mg Price on request 676653 Levodopa, 100mg Price on request