Metformin, 1000μg/ml in MeOH, 1ml Back Catalog number: 72207 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9138.7-K-ME Mesalazine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 89-57-6 Price on request 687318 1-Methyl-4-nitroso-piperazine, 50mg Price on request 8367.6-50MG 2,3,4-Trichloroaniline, neat, Solvent-neat, Unit 50mg, # of units-1, Cas.no. 634-67-3 Price on request