Buy 2, Get 1 Free: Primary Antibodies

Stock up and save on your next discovery with Buy 2, Get 1 Free on Proteintech's primary antibodies

Use promo code: B2G123

Offer ends March 31st, 2023. Valid in .

  • 1
    Rigorously tested for target specificity including KD/KO validation
  • 4
    Broad target coverage across multiple research areas
  • 2
    Validated in WB, IP, ELISA, IHC, IF, FC, & more
  • 5
    Cited in >180,000 publications
  • 3
    Reactivity against multiple species
  • 6
    Self-manufactured catalog with in-house validation

Search our catalog of Primary Antibodies

Proteintech is a leading provider of primary antibodies with an extensive portfolio of polyclonal, monoclonal, and recombinant antibodies.

All our primary antibodies are developed and validated in-house by Proteintech scientists to ensure high specificity and lot-to-lot consistency.

Polyclonal Antibodies

Recognize multiple epitopes on the protein of interest. Binds with very high affinity. Good for low abundant targets, rare species and mutated proteins.

Proteintech polyclonals are raised in rabbit.

Monoclonal Antibodies

Recognize a single epitope on the protein of interest. Low background, highly specific. Good for mid-high abundant targets. ​

Proteintech monoclonal antibodies are raised in mouse.

Recombinant Antibodies

Genetically defined monoclonals, recombinantly produced. Unrivalled reproducibility. Good for long-term, high-level projects.  ​

Proteintech recombinant antibodies are raised in rabbit. Learn more about our recombinant antibody production process.

Find Your Primary Antibodies


 Terms and Conditions:

  1. Offer is only available to customers based in US, Canada and Europe only.
  2. Offer cannot be used in conjunction with any other offers or discounts.
  3. Offer is valid from February 20th, 2023 - March 31st, 2023
  4. Purchase two full size primary antibodies and get a third full size primary antibody for free.
  5. Trial size (20ul) antibodies are not considered full sized antibodies and are therefore excluded from this promotion.
  6. Discount is applied to product of the lowest cost.
  7. This promotion is only applicable to full sized primary antibodies.
  8. Order does not need to contain products of the same catalog number for discount to be applied. 
  9. Antibody trial packs cannot be redeemed as a single item.
  10. Discount may be applied to orders of up to 9 qualifying products.
  11. Shipping costs still apply.
  12. Offer is subject to stock availability.
  13. Available for direct order only. 
  14. The promotion code must be entered at checkout or quoted on your email/fax order to be applied. We cannot apply the promotion retroactively.
  15. For further inquires, contact our customer service team at (312)455-8498 or via email at
  16. Proteintech has the right to cancel or refuse this promotion at any time. 
  17. Personal data captured during this promotion will be processed in accordance with applicable data protection regulations and Proteintech’s privacy policy. You will be able to, at any time, modify, update, or remove personal data by writing to / emailing Proteintech.