Diphenylamine, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678394 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 11976.16-K-ME (±)-Pheniramine,1000 µg/mL,MeOH,1mL, Price on request 50049 Metals Mix #1 Price on request 680574 Thiometon-sulfoxide, 100 µg/ml, Cyclohexane, 1ml Price on request