4-Methylvaleric acid, 250mg Back Catalog number: 680164 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 2293.9-1G Trimellitic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 528-44-9 Price on request 9135.12-50-IO 2,2',3,3',4,4',5,6'-Octabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 446255-39-6 Price on request S-4053-0-10T Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K Price on request