Perfluoro-n-butanoic acid, 50µg/ml in MeOH, 1,2ml Back Catalog number: PFBA Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 9990.49-10-ME Microcystin RR, 10µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 111755-37-4 Price on request 30034 EPA Method 525Mixes Price on request 675413 D6-Diuron, 100 µg/ml, Acetone, 1ml Price on request