Base/Neutrals Surrogate Standard Back Catalog number: 21006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2748.13-1G Benzophenone, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 119-61-9 Price on request 678302 1,2-Dinitrobenzene, 250mg Price on request 51144 WA EPH Fractionation Check Standard Price on request