1,2,4,5-Tetramethylbenzene Back Catalog number: 71222 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52035 Calibration Standard Mix 3 Price on request 70202 Indeno(1,2,3-cd)pyrene Price on request 677961 Etrimfos, 100 µg/ml, Toluene, 1ml Price on request