Mineral Spike Back Catalog number: 50420 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2688.34-10UG 17 alpha(H),21ß(H)-(22S)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 67069-13-0 Price on request 72653 Di-n-propylamine Price on request 3423.7-100-CY Ioxynil Price on request