Stabilizer & Preservative

Stabilizers and Preservatives are indispensable functional components in in vitro diagnostic (IVD) reagents, serving distinct yet complementary roles in ensuring the reliability and longevity of diagnostic tests.

Stabilizers are primarily responsible for maintaining the structural integrity and biological activity of critical reagent components, such as enzymes, antibodies, and antigens. They protect these sensitive molecules from degradation caused by physical and chemical stressors, including temperature fluctuations, pH shifts, and oxidation. Common stabilizers include sugars (e.g., trehalose), polyols (e.g., glycerol), and proteins (e.g., BSA), which work collectively to extend the reagent's shelf life and guarantee consistent analytical performance—throughout its stated validity period.

Preservatives,are antimicrobial agents designed to prevent microbial contamination (bacterial and fungal growth) in liquid reagents, especially in multidose containers. By inhibiting or killing microorganisms, preservatives safeguard reagent integrity, prevent changes in pH or turbidity, protect automated instrumentation from biofilm clogging, and ensure patient safety. Their role is crucial for maintaining reagent sterility during repeated use.

Application Area

  1. Immunoassays

  2. Clinical Chemistry

  3. Molecular Diagnostics

  4. Point-of-Care Testing (POCT)

  5. Hematology & Flow Cytometry

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Gentamycin sulfate, Concentration: 50mg/ml, sterile|981533|1405-41-0
1405-41-0, all

Gentamycin sulfate, Concentration: 50mg/ml, sterile

Product Information Product Name Gentamycin sulfate, Concentration: 50mg/ml, sterile Brand Name J&K Product Number 981533 CAS 1405-41-0 Certificate of Analysis (COA)​ Search COA not found
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Gentamicin sulfate, ≥590 IU/mg|405947|1405-41-0
1405-41-0, all

Gentamicin sulfate, ≥590 IU/mg

Product Information Product Name Gentamicin sulfate, ≥590 IU/mg Brand Name J&K Product Number 405947 CAS 1405-41-0 SDS Document View/Download Certificate of Analysis (COA)​ Search COA not found
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G418 disulfate salt, for biochemistry|493728|108321-42-2
all, Stabilizer & preservative

G418 disulfate salt, for biochemistry

Product Information Product Name G418 disulfate salt, for biochemistry Brand Name J&K Product Number 493728 CAS 108321-42-2 SDS Document View/Download Certificate of Analysis (COA)​ Search COA not found
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Dextran sulfate sodium salt, Mw ~ 8000|29897|9011-18-1
all, Stabilizer & preservative

Dextran sulfate sodium salt, Mw ~ 8000

Product Information Product Name Dextran sulfate sodium salt, Mw ~ 8000 Brand Name Chem Impex Product Number 29897 CAS 9011-18-1 Certificate of Analysis (COA)​ Search COA not found Application Dextran...
$34.50
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Dextran sulfate sodium salt|01288|9011-18-1
all, Stabilizer & preservative

Dextran sulfate sodium salt

Product Information Product Name Dextran sulfate sodium salt Brand Name Chem Impex Product Number 01288 CAS 9011-18-1 Certificate of Analysis (COA)​ Search COA not found Application Dextran sulfate sodium salt...
$40.30
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Dextran sulfate sodium salt, average M.W. 500,000|940975|9011-18-1
all, Stabilizer & preservative

Dextran sulfate sodium salt, average M.W. 500,000

Product Information Product Name Dextran sulfate sodium salt, average M.W. 500,000 Brand Name J&K Product Number 940975 CAS 9011-18-1 SDS Document View/Download Certificate of Analysis (COA)​ Search COA not found...
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