1,2,3,4-Tetramethylbenzene Back Catalog number: 70491 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677416 4-Hydrazinobenzenesulfonic acid hemihydrate, 250mg Price on request 2671.5-50-IP Dibromoneopentylglycol, 50µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 3296-90-0 Price on request 0364.8-K-IO 3,4-Dimethylthieno[2,3-b]thiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17502-58-1 Price on request