N-methylperfluoro-1-butanesulfonamide, 50µg/ml in MeOH, 1,2ml Back Catalog number: N-MEFBSA-M Availability: In the manufacturer's stock Price on request - + Recommended 30004 EPA Method 500 Series Internal Standard #5 Price on request 93634 D-(+)-Fucose Price on request X9009 Aldrin Price on request