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EX-CELL® 420 Serum-Free Medium for Insect Cells

with L-glutamine, without sodium bicarbonate, dry powder, suitable for insect cell culture

MDL number:

Quality Level


for research or for further manufacturing use


cell culture | insect: suitable

storage temp.


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EX-CELL 420 is a complete medium developed and optimized for the serum-free growth of Sf9 and Sf21 insect cell lines. Cells can be subcultured directly into EX-CELL 420 from serum-free or seum-supplemented media without adaptation. Cultures in EX-CELL 420 routinely reach cell densities greater than 1 × 107 cells/mL with greater than 95% viability. Suspension cultures can be maintained, without refeeding, for more than 10 days. Sf9 and Sf21 cells have been carried for more than 20 passages in EX-CELL 420 with no loss of viability. Protein expression and virus production are improved over serum-containing media.


Formulated to contain 30.8 grams of powder per liter of medium.

Legal Information

EX-CELL is a registered trademark of Sigma-Aldrich Co. LLC

Storage Class Code

10 - Combustible liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Judith Scholz et al.
BMC biotechnology, 17(1), 83-83 (2017-11-18)
In the last three decades, the Baculovirus expression vector system (BEV) has evolved to one of the most widely used eukaryotic systems for heterologous protein expression including approved vaccines and therapies. Despite the significant improvements introduced during the past years...
Norikatsu Nishikawa et al.
Cytotechnology, 43(1-3), 3-10 (2008-11-13)
The production of beta-galactosidase by Sf9 cells infected with recombinant Autographa californica nucleopolyhedrovirus (AcNPV) was investigated in shake-flask culture using two serum-free basal media: Grace's medium and TNM-FH (Grace's medium supplemented with lactalbumin hydrolysate and yeast extract). At the time...
Fabiana R X Batista et al.
Cytotechnology, 49(1), 1-9 (2008-11-13)
Animal cells can be cultured both in basal media supplemented with fetal bovine serum (FBS) and in serum-free media. In this work, the supplementation of Grace's medium with a set of nutrients to reduce FBS requirements in Spodoptera frugiperda (Sf9)...
Hideki Yamaji et al.
Journal of bioscience and bioengineering, 95(2), 185-187 (2005-10-20)
When rat protein kinase C-delta (PKC-delta) was produced by Sf9 cells infected with a recombinant baculovirus in shake-flask culture using a serum-containing medium, the intracellular PKC-delta content decreased in the late period while the extracellular PKC-6 markedly increased. During the...

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