F1283 Sigma-Aldrich

Fetal Bovine Serum

Fetal Bovine Serum, USA origin, Ultra Low IgG

Synonym: FBS, FCS, Fetal Calf Serum



Related Categories Cell Culture, FBS Select, Fetal Bovine Serum (FBS) and Other Animal Sera, Fetal Bovine Serum (FBS) for cell culture
Quality Level   500
biological source   bovine fetus
sterility   sterile-filtered
composition   Bovine IgG, <5 μg/mL
  Hemoglobin, ≤20 mg/dL
origin   USA origin
storage condition   avoid repeated freeze/thaw cycles
  protect from light
application(s)   cell culture | mammalian: suitable
impurities   ≤10 EU/mL endotoxin
pH   6.8-8.1
osmolality   260-330 mOsm/kg H2O
shipped in   dry ice
storage temp.   −20°C


General description

Animal serum is commonly used to supplement basal media formulations for the optimal growth of many cell types in vitro.

Fetal Bovine Serum (FBS) is the most common serum used to supplement cell culture media due to its high nutritional content. Although it is relatively low in protein, FBS is effective in promoting and sustaining growth of vertebrate mammalian and insect cells.

IgG is the most common immunoglobulin present in FBS. Elevated levels of IgG may cause problems within certain recombinant protein or monoclonal antibody purification processes. For applications where IgG may interfere or cause issues, we have depleted IgG levels in this fetal bovine serum by sequential chromatography down to a level of < 5 ug/mL, while maintaining performance equivalent to regular FBS.


Packaged in sterilized, graduated plastic bottles and sealed with a tamper indicator. Bottles are immediately frozen and stored at -10 to -40 C.

Preparation Note

The fetal blood is aseptically collected and allowed to clot under controlled conditions. After centrifugation, the raw (unfiltered) serum is decanted from the clot, pooled and immediately frozen.

Frozen raw serum is thawed under controlled conditions and then processed through a series of membrane filters in descending pore size. FBS is filtered through three 0.1 μm filters before packaging.

Analysis Note

Endotoxin and hemoglobin tested

Safety & Documentation

Safety Information

WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles

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