Metformin, 1000μg/ml in MeOH, 1ml Back Catalog number: 72207 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2622.33-50-IO 17 alpha(H),21ß(H)-(22RS)-Trishomohopane , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 54340-13-5 Price on request L-PFNS Sodium perfluoro-1-nonanesulfonate, 1.2ml x 50ug/ml, methanol Price on request 57083 Bismuth (Bi) Price on request