G9023 Sigma

Goat serum

Synonym: Serum



Related Categories Antibodies, BRDU Cell Proliferation Assay Reagents, Blocking Sera and Reagents, Cell Biology, Core Bioreagents,
contains   0.01% thimerosal
Featured Industry   Research Pathology
shipped in   dry ice
storage temp.   −20°C


Frequently Asked Questions

Frequently Asked Questions are available for this Product.


Normal goat serum may be used as a blocking agent or negative control in immunoassays. For immunohistochemistry and immunocytochemistry, goat serum was used between 1%-20% as blocking agent in various studies.

General description

Goat serum is pooled from a normal donor herd.

Price and Availability

LC-MS Grade Solvents and Reagents

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Biomedical Applications
Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
Can I use Product No. G6767, Goat serum, cell culture tested for blocking?
We have not tested the cell culture material for blocking in immunological assays. Product No. G9023 has been tested to make sure there are no factors that give non-specific signals in immunological assays.  Some lots of Product No. G6767 may work for your application.
How much protein is present in Product G9023, Goat Serum?
The total protein concentration for the serum can be found on the lot specific Certificate of Analysis.  These can be obtained from the product page on the website:
How many times can Product G9023, Goat Serum, be frozen and thawed?
We recommend that the product be thawed initially and refrozen in individual use aliquots.  The second thawing will not harm the product.  Multiple freeze/thaw cycles can destroy protein.
Does Product G9023, Goat Serum, contain a preservative?
Product No. G9023 contains 0.01% thimerosal.  We do not recommend using this for cell culture applications as the thimerosal can interfere with cell growth.
Has Product G9023, Goat Serum, been heat-inactivated?
Product No. G9023, Goat serum has not been heat inactivated.  For most immunochemical reactions, it is not necessary for the serum to be heat inactivated.  Heat inactivation is only necessary to limit complement activity.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option:
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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92210 Timestrip Plus 0 °C
06693 Timestrip Plus -20 °C

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