4-Methylvaleric acid, 250mg Back Catalog number: 680164 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 8498.20-25-T 1,2,3,4-Tetrahydro-3,4-dimethylchrysene, 25µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request 52031 Spike Sample Standard 3 Price on request 3548.26-K-T 9,9'-Bifluorenylidene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 746-47-4 Price on request