Acids Calibration Level 3 Back Catalog number: 94840 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2612.24-200-T Tetracosahydrocoronene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 54171-94-7 Price on request SC-203161B (-)-Nicotine ditartrate, >99%, (CAS 65-31-6), 10g Price on request 9485.20-50-AN 6-Chlorobenzo[a]pyrene Price on request