Vector Laboratories is closed for the President’s Day on Monday, February 19th. We will be back in the office on Tuesday, February 20th.
We will respond to emails upon our return. Have a wonderful day.

Nuclear Fast Red Counterstain (H-3403-500)



Nuclei stained with Vector® Nuclear Fast Red (H-3403) have a pink appearance. Vector Nuclear Fast Red is an excellent choice in multiple labeling applications when hematoxylin obscures the substrate colors.


  • Good contrast with a variety of substrates
  • Rapid staining procedure requiring only one step
  • Suitable for use with non-aqueous mountants


Unit Size500 ml
ApplicationsImmunohistochemistry / Immunocytochemistry, In situ hybridization


Technical Information

Optimize Counterstain Intensity

Applicable patents and legal notices are available at legal notices.

How do I Request a Quote?

To request a quote for products:

  1.  Log in to
  2.  Add the items you wish to quote to the cart;
  3.  View your cart;
  4.  Click on the “Request a Quote” button found below the items in your cart;
  5.  Download your quote