7H-Perfluoroheptanoic acid, 50µg/ml in MeOH, 1ml Back Catalog number: 2835.7-50-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 0198.9-K-IO 4-Methylbenzothiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 14315-11-8 Price on request 32052 EPA Method 551 Analytes Price on request 3935.3-1ML 1,2-Dichloropropane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 78-87-5 Price on request