1-Butene Back Catalog number: 71677 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71917 Ethyl (S)-(-)-lactate Price on request 72653 Di-n-propylamine Price on request 688495 Terbuthylazine-2-hydroxy, 100µg/ml in Acetone, 1ml Price on request