3 for 2 ChromoTek Nanobodies

Buy two ChromoTek products, get one free.

Three for two

Stock up on your Nanobody-based tools for your new projects. Purchase three ChromoTek products and get the lowest-priced item for free.


Products included in the promotion:



Nano-Traps are ideal for fast, reliable and efficient one-step immunoprecipitation and co-immunoprecipitation. Nano-Traps comprise of Nanobodies conjugated to beads.

Nano-Secondary® Reagents

Nano-Secondary® Reagents are a novel class of secondary antibodies for higher resolution & cleaner images. Nano-Secondary® Reagents are Nanobodies conjugated to fluorescent dyes binding to conventional antibodies.

Antibodies / IgGs

Conventional antibodies of rat, mouse, and rabbit for reliable detection of fluorescent proteins, protein-tags, small epitope tags, epigenetic markers, and RNA-Polymerase II.

Nano-Boosters & Nano-Labels

Nano-Boosters & Nano-Labels are very small fluorescent probes optimzed for confocal and super-resolution microscopy. They consist of Nanobodies conjugated to fluorescent dyes.


Chromobodies® are fluorescent nanoprobes for real-time and live-cell imaging of intracellular endogenous proteins. Chromobodies® are Nanobodies that are genetically fused to a fluorescent protein such as GFP.


Nano-CaptureLigands® are optimized to specifically immobilize human, mouse, and rabbit antibodies to streptavidin/avidin. Nano-CaptureLigands® are biotinylated Nanobodies.

Nanobodies / VHHs

Nanobodies / VHHs are suitable for conjugation to dyes, biotin, beads, surfaces etc. via NHS ester reaction.



Terms & Conditions

  1. This promotional offer is only available to customers in Europe until June 30, 2024. 
  2. Product of equal or lesser value will be chosen as the free product.
  3. Discount may be applied to orders of up to 9 qualifying products (up to 6 paid and 3 free products per order).
  4. This promotion may be applied to all ChromoTek products except 200rxn and 400rxn pack sizes of ChromoTek Nano-Traps and ChromoTek Spot-Cap®
  5. This promotion code cannot be used in conjunction with any other promotional offer. 
  6. The promotion code CTK3FOR2 must be entered at checkout or quoted on your email/fax order to be applied. We cannot apply the promotion retroactively. 
  7. Available for direct orders only. If you wish to order via a distributor, you must contact them directly.
  8. Usual shipping costs still apply. 
  9. Proteintech reserves the right to cancel or refuse this promotion at any time


Discover our other exciting 3 for 2 promotions:


3 for 2 on Primary Antibodies

Stock up and save on your favorite primary antibodies!

3 for 2 on HumanKine RUO Reagents

Buy two HumanKine RUO products, get one free.