WP Total Phenolics Back Catalog number: 56136 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1780.10-100-AN 2-Aminonaphthalene,100 µg/mL,acetonitrile,1mL, Price on request 1577.23-100-ME Pholcodine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 509-67-1 Price on request 676328 Metoprolol tartrate, 250mg Price on request