4,4’-DDD Back Catalog number: 79148 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3609.4-1ML 1,2-Butanediol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 584-03-2 Price on request 676064 Cefazolin sodium salt, 100mg Price on request DF-1368-S 1,3,6,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request