A9731 Sigma-Aldrich

Albumin human

recombinant, expressed in rice, lyophilized powder, cell culture tested, low endotoxin, ≥96% (Excised bands analyzed by MS to yield total albumin content, PAGE)

Synonym: Cellastim, rHSA



Related Categories Albumin, Albumins and Transport Proteins, Bioactives and Supplements for Stem Cell Expansion, Biochemicals and Reagents, CHO Platform,
biological source   human
recombinant   expressed in rice
assay   ≥96% (Excised bands analyzed by MS to yield total albumin content, PAGE)
form   lyophilized powder
mol wt   monomer mol wt ~67 kDa
impurities   ≤1 EU/mg protein
suitability   cell culture tested
storage temp.   2-8°C
Gene Information   human ... ALB(213)


Analysis Note

Assayed by PAGE (Native-PAGE)

Biochem/physiol Actions

Albumins are soluble monomeric proteins found in the body fluids and tissues of animals and in some plant seeds. Serum albumin functions as a carrier protein for steroids, fatty acids, and thyroid hormones. Serum albumins are also vital in regulating the colloidal osmotic pressures of blood.

Features and Benefits

Cellastim is a well defined, animal-free recombinant human albumin (rHA). Designed for cell culture applications, Cellastim is a powerful media supplement that outperforms plasma-derived human albumin, bovine serum albumin, and other sources of recombinant human albumin. Cellastim delivers consistent performance, not the variability associated with hydrolysates and extracts. Cellastim is ideally suited for use in cell culture media for Chinese Hamster Ovary (CHO), hybridoma, VERO, stem cells and primary cells.

• Eliminates animal-derived additives
• Safe and regulatory friendly
• Proven effective in enhancing stem cell growth in embryonic, mesenchymal, neural, cardiac, liver, kidney, keratinocyte and fibroblast stem cell lines
• Maintains stem cells in an undifferentiated state
• Eliminates coating of culture plates for adherent cell lines
• Provides well-defined and consistent stem cell medium

Other Notes

To view more information on Cellastim download the Cellastim Brochure, Cellastim CHO Poster, and Cellastim hybridoma Poster.

View more information on human serum albumin.


1, 5, 10 g in poly bottle

Physical form

lyophilized powder containing sodium phosphate and sodium chloride, pH 7.0.


This recombinant variant is recommended for use in absorption, distribution, metabolism, and excretion (ADME) pharmacological research; cell culture; drug delivery research; and cryopreservation of cells.

Legal Information

Cellastim is a trademark of InVitria

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Cell Culture Guide

Milli-Q® Water Purification Solutions
Protocols & Articles


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Peer-Reviewed Papers


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A8763 Albumin from human serum, lyophilized powder, essentially globulin free, ≥99% (agarose gel electrophoresis)

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