Internal Standard Back Catalog number: 95592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681479 Thidiazuron, 10.0 µg/ml, Acetonitrile, 10ml Price on request 677742 Nitralin, 10 µg/ml, Ethyl acetate, 10ml Price on request 676604 1-Phenyl-1H-1,2,4-triazole, 10mg Price on request