trans-Nonachlor Back Catalog number: 79281 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93595 EPA Method 8141 Standard Price on request 2617.31-10UG 17 alpha(H),21 alpha(H)-(22RS)-Homohopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. Price on request EPA-23SSS Surrogate Standard Stock Solution, 1.2ml, nonane Price on request