Internal Standard Back Catalog number: 96651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2099.18-K-IO Di-n-pentyl phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 131-18-0 Price on request 91952 4-Bromo-3,5-dimethylphenyl-N-methylcarbamate Price on request L11890000IO Cypermethrin, 10µg/mL in Isooctane, 10ml Price on request