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.

Normal Goat Serum Blocking Solution, 2.5% (S-1012-50)



2.5% Normal Goat Serum can be used for blocking non-specific binding or as an antibody diluent.


  • Pooled samples collected from healthy adult animals
  • Heat-treated and centrifuged to remove precipitates and then filtered
  • Tested with appropriate antibody to check for possible cross-reactivities
  • Ready-to use 2.5% solution (v/v) in buffer containing 0.08% sodium azide
  • Same serum preparation that is included in the ImmPRESS® Detection Systems


Unit Size50 ml
ApplicationsImmunohistochemistry / Immunocytochemistry, Immunofluorescence
Blocking ActionNon-Specific Protein Blocking

Product FAQs

Normal Goat Serum, Cat. No. S-1000, is essentially spun whole blood, filtered, heat inactivated and preserved with the addition of sodium azide. The 20 ml provided therefore is all goat serum. For most IHC and IF tissue staining applications, an aliquot is taken and diluted in assay buffer such as PBS or TBS to 2-10% (v/v). This working solution can be stored in the fridge and used for up to one week. Beyond this time, there would be concern for possible microbial contamination that would affect performance.


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