Azobenzene, 100 µg/ml, Cyclohexane, 1ml Back Catalog number: 680842 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 681213 2,3-Heptanedione, 250mg Price on request 8489.25 (1R,4aR,5aR,8aR,10aR)-1-(4-methylpentyl)-1,6,6,8a,10a-pentamethylperhydrophenanthrene, ca. 10µg/mL, Solvent-isooctane, Unit 0.25µL, # of units-1, Cas.no. Price on request 1663.12-100-IO 1,12-Dichlorododecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3922-28-9 Price on request