0.020 N Sodium Hydroxide Back Catalog number: 50297 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678627 Acrolein-2,4-DNPH, 25mg Price on request 0474.18-200-T 2,3,9,10-Tetramethylantracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 66552-77-0 Price on request NK-ST-B2 Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request