Erbium (Er) Back Catalog number: 58068 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3178.9-K-IO Ethyl heptanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 106-30-9 Price on request 34221 Methyl acetate Price on request 1406.8-1G 2,4-Dimethylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 105-67-9 Price on request