1,2,3,4-Tetramethylbenzene Back Catalog number: 70491 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91398 EPA Method 8141 / 1618 Pesticide Mix B Price on request 1102.13-K-IO 2-Methyldibenzofuran, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7320-51-6 Price on request 94593 Freon Gas Mix Price on request