Multi-Element Internal Standard Back Catalog number: 50160 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2636.28-5UG 17ß(H),21 alpha(H)-28,30-Bisnorhopane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 83377-28-0 Price on request 95948 Appendix IX Mix #2 Price on request 0309.17-10MG 7H-Benzo[c]fluorene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 205-12-9 Price on request