Ytterbium (Yb) Back Catalog number: 57070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9866.17-10MG alpha-Hydroxyalprazolam-d5, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 136765-24-7 Price on request 98655 PAH Standard (200 ppm) Price on request 8799.12-5MG 2,2',3,3',4',5,6-Heptachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 52663-70-4 Price on request