Normal Human Serum

Product Description

Normal serums are lipid extracted to improve clarity, dialyzed against phosphate buffered saline (PBS) containing sodium azide, and freeze dried. Normal serum diluted to 5% (v/v) in PBS is strongly recommended as a blocking reagent to reduce background from non-specific, conserved sequence and/or Fc receptor binding. Best results are obtained with diluted normal serum from the same host as the labeled antibody, as a separate incubation step before addition of the primary antibody.

Physical State: Freeze-dried solid 
Storage: Store freeze-dried powder at 2-8°C. When ready to use, rehydrate with indicated volume of d. water and centrifuge if not clear. Product is stable for about 6 weeks at 2-8°C as an undiluted liquid. Prepare working dilution fresh each day. For extended storage after rehydration, aliquot and freeze undiluted product at -20°C or below. Avoid repeated freezing and thawing. 

Expiration date: one year from date of rehydration. However, the expiration date may be extended if the product is stored according to the recommendation and the test results are acceptable for its intended use. 

Sterility and Safety

This serum is sterile filtered, ensuring that it is free from microbial contamination. It is thoroughly screened for HIV, HBV, and HCV, providing an added layer of safety for clinical and research use. Endotoxin levels are strictly limited to under 1 EU/mL, reducing the risk of pyrogenic reactions during sensitive experiments.


Versatile Applications

Normal Human Serum is suitable for a range of applications such as immunoassay development, biochemical research, cell supplementation, and diagnostic procedures. Its high protein content and research/clinical grade quality make it an excellent supplement for cell culture media and various laboratory assays.


Quality and Traceability

To guarantee product consistency and compliance, each bottle comes with full donor documentation available upon request. Every batch is produced under stringent quality control standards, ensuring researchers and clinicians can trust its provenance and composition for regulatory or validation requirements.