Method 1640 Tuning Standard Back Catalog number: 52147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0615.27-100-IO 17 alpha(H)-22,29,30-Trisnorhopane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 53584-59-1 Price on request 675310 D4-Ethephon, 5mg Price on request 60030 Acid Extractables - MISA Price on request