Paraben-Mix 1, 100 µg/ml, Methanol, 5ml Back Catalog number: 681454 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1739.12-K-T 3,3'-Dinitrobenzidine, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 6271-79-0 Price on request 676610 2-Propanethiol, 250mg Price on request 8630.31-10UG 3ß,17ß(H),21 alpha(H)-3-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 497938-96-2 Price on request