Benzo(b)furan, certified, 25mg Back Catalog number: C20591500 Availability: In the manufacturer's stock Price on request - + Recommended 72207 Metformin, 1000μg/ml in MeOH, 1ml Price on request S-4262-SET Aromatics Calibration Standards Kit (4 Internal Standard Version) 24 Analytes + 4 ISTD, each Vol.% as listed in isooctane; units: 5x1mL Set, one of each Std. 1-5 + opt. 1x1mL (Std. 6) To these calibration standards are 4 fluorinated Internal Standa Price on request 95358 Ethanol Kit Price on request