Buy 2, Get 1 Free: Primary Antibodies - Nano-Traps - RUO Proteins

Offer ends July 31st, 2025 (Available in US & Canada only) |
Place an online order using the code above or request that it be included in your quote or purchase order. Terms & conditions apply, see below for details.
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Rigorously tested for target specificity including KD/KO validation
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Broad target coverage across multiple research areas
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Validated in WB, IP, ELISA, IHC, IF, FC, & more
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Cited in >300,000 citations
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Reactivity against multiple species
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Self-manufactured catalog with in-house validation
Search our catalog of Primary Antibodies, Nano-Traps & RUO Recombinant Proteins
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.
Nano-Traps
Nano-Traps are ideal for fast, reliable and efficient one-step immunoprecipitation and co-immunoprecipitation. Nano-Traps comprise of Nanobodies conjugated to beads.
RUO Cytokines & Growth Factors
Human Cell (HEK293) expresssed cytokines and growth factors with high bioactivity, stability, lot-to-lot consistency, and native human conformation & post-translational modifications.
Terms and Conditions:
- Offer is only available to customers based in the US and Canada.
- Offer cannot be used in conjunction with any other offers or discounts.
- Offer is valid until 7/31/25.
- Purchase two full size primary antibodies and get a third full size primary antibody for free -or- Purchase two 20rxn size ChromoTek Nano-Traps and get one 20rxn size Nano-Trap for free -or- Purchase two 10ug/100ug HumanKine RUO recombinant proteins and get one 10ug/100ug HumanKine RUO recombinant protein for free.
- Trial size (20ul) antibodies are not considered full sized antibodies and are therefore excluded from this promotion.
- Discount is applied to product(s) of the lowest cost.
- Tag/Control antibodies are included in this promotion.
- This promotion is only applicable to full sized primary antibodies, 20rxn size Nano-Traps, 10ug HumanKine RUO recombinant proteins and 100ug HumanKine RUO recombinant proteins.
- Minimum of 3 qualified antibodies within an order to get one antibody free, minimum of 3 qualified traps to get one trap free, minimum of 3 qualified RUO proteins to get one RUO protein free.
- Full size primary antibodies, ChromoTek Nano-Traps and HumanKine RUO recombinant proteins cannot be mismatched for the discount.
- 10ug and 100ug HumanKine RUO recombinant proteins cannot be mismatched for the discount.
- Discount may be applied to orders of up to 9 qualifying antibodies (6 full price and 3 discounted products), 9 qualified traps and 9 qualified RUO proteins.
- Antibody trial packs cannot be redeemed as a single item.
- Shipping costs still apply.
- Offer is subject to stock availability.
- Available for direct order only.
- The promotion code must be entered at checkout or quoted on your email/fax order to be applied. We cannot apply the promotion retroactively.
- For further inquiries, contact our customer service team at: 312-455-8498
- Proteintech has the right to cancel or refuse this promotion at any time.
- 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.