QC Standard 1 Back Catalog number: 52084 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674968 D10-Ethoxyquin HCl, 10mg Price on request 10249.13-50-ME 2,4-Dihydroxybenzophenone-13C6, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 131-56-6 (unlabelled) Price on request 79601 Biphenyl Price on request