cis-2-Butene Back Catalog number: 72428 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8225.6-100-CY Demeton-S-methyl Price on request 2569.24-10UG Cyclopent[hi]indeno[4,3,2,1-cdef]chrysene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 171877-64-8 Price on request 0452.3-150-CY GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. Price on request