4,4’-DDD Back Catalog number: 79290 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D455140 3,5-Diiodo Thyroacetic Acid, 25mg Price on request ATBCO (1R,2R,5S,6S)-1,2,5,6-Tetrabromocyclooctane, 1.2ml x 50ug/ml , toluene Price on request 82508 EPA Method 8250/8250A Cal Check Cmpds Acids Price on request