Pyrethrins, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678493 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 71544 Methylene dithiocyanate Price on request 92345 Surrogate Standard Price on request 677567 Tri-m-cresyl phosphate, 100mg Price on request