2-Methyl-2-butene Back Catalog number: 71465 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2700.8-K-ME Isocaffeine (1,3,9-Trimethylxanthine), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 519-32-4 Price on request 2846.9-50-ME 1H,1H,9H-Perfluorononan-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 376-18-1 Price on request 675431 Paraquat dichloride hydrate, 100mg Price on request