Method 532 Surrogate Standard Back Catalog number: 30197 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677728 Catechol, 500mg Price on request 8777.9-1G Isopropylated trisphenyl phosphate (Phenol, isopropylated, phosphate), neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 68937-41-7 Price on request 675872 2,4'-Dichlorobenzophenone, 250mg Price on request