Calibration Std. #1 Back Catalog number: 59964X Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended M373550 Mitragynine, 1mg Price on request 8884.18-10MG Ethylene bis(tetrabromophthalamide, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 32588-76-4 Price on request 8231.14-50-IO 2-Chloroanthracene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 17135-78-3 Price on request