Erbium (Er) Back Catalog number: 58068 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended N-12148-50MG Heptachlor epoxide (Isomer B), 50mg Price on request 9226.6-100MG Povidone, PVP-polymer, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 9003-39-8 Price on request 687344 13C6-Diclofenac sodium, 10mg Price on request