Do you have any information on antibody stability after reconstitution? I'm concerned that an IgM antibody may have fragmented during the lyophilization process or became aggregated upon reconstitution.

As mentioned in the datasheet, THE™ PEG Antibody, mAb, mouse should be stored in its lyophilized form until use. It remains stable in lyophilized form if stored at -20°C or below. The reconstituted antibody can be stored for 2-3 weeks at 2-8°C or for up to 12 months at -20°C or below. Avoid repeated freeze-thaw cycles.

Reconstitute the lyophilized product with deionized water (or equivalent) to make an antibody concentration of 0.5 mg/ml. For long-term storage, it is recommended to add glycerol to a final concentration of 50% (v/v) in the reconstituted antibody solution.