Silver (Ag) Back Catalog number: 56247 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3916.8-1ML N-Methyl-N-(trimethylsilyl)heptafluorobutyramide, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 53296-64-35 Price on request 71211 trans-Piperylene Price on request 1167.12-K-IO 2,2,4,6,6-Pentamethylheptane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13475-82-6 Price on request