Concentration & Expiration (for antibody and recombinant protein products)

Enter the Lot# (starting with “B”) of the product you have purchased from BioLegend to look up the concentration and expiration date.

Please note:

* To look up the concentration of any kits and sets (e.g., LEGENDplex, ELISA, Flow kits, buffer sets), please review the lot-specific CoA here.

For further assistance, please call Technical Service toll-free (US & Canada) at 1-877-273-3103, or 1-858-768-5801 (for international inquiries), or send us an email.