4,4'-MDI, 1000mg Back Catalog number: 682730 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 55209 Hexavalent Chromium Price on request 8609.3-K-ME 1,3-Dichloro-2-propanediol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 96-23-1 Price on request 9192.10-10MG (+/-)-Cotinine-d3 (N-methyl-d3), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 110952-70-0 Price on request