Bovine Serum Albumin (BSA)

Product 20 g $71100 g $1841 kg $918

Bovine Serum Albumin (BSA), Fraction V—Standard Grade
700-100P

Gemini’s standard grade BSA is a highly purified, lyophilized powder. Its characteristics include minimum 98% albumin, pH adjusted to 7, caprylate-free, and low conductivity. It is used in bacterial media, enzyme systems, and as a protein base.


Ships ambient. Store refrigerated at 2 to 8°C

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $122100 g $2861 kg $1821

Bovine Serum Albumin (BSA), Fraction V—Protease-Free Grade
700-101P

Gemini’s protease-free BSA is a highly purified, lyophilized powder. This product is processed to provide a minimum of 98% albumin and to be essentially free of detectable protease. The pH is adjusted to 7.0. It is used in diagnostic reagent manufacturing and as a model protein for blood banking reagents.

Ships ambient. Store refrigerated at 2 to 8°C

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $120100 g $4281 kg $2596

Bovine Serum Albumin (BSA), Fraction V—Low-Endotoxin Grade
700-102P

Gemini’s low-endotoxin BSA is a highly purified, lyophilized powder. This product is processed to provide a minimum of 98% albumin and to be essentially free of protease, IgG and non-esterified fatty acids. Endotoxin content is typically less than or equal to 2 EU/mg. The pH is adjusted to 7. It is ideal for most cell culture applications and assays that require low endotoxin levels.

Ships ambient. Store refrigerated at 2 to 8°C

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $120100 g $2801 kg $1,785

Bovine Serum Albumin (BSA), Fraction V—RIA Grade
700-103P

Gemini’s RIA Grade BSA is a highly purified, lyophilized powder. This product is processed to provide a minimum of 98% albumin and is suitable for diagnostic reagent manufacturing. This is also used for immunodiagnostic assays such as EIA, RIA and ELISA blocking systems.

Ships ambient. Store refrigerated at 2 to 8°C.

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $163100 g $6531 kg $3346

Bovine Serum Albumin (BSA), Fraction V—Serum Replacement Grade
700-104P

Comparable to AlbuMAX®, our serum-replacement grade BSA is a highly purified, lyophilized powder. Formulated to optimize the product’s lipid profile for growth promotion, this lipid-enriched BSA is processed to provide a minimum of 98% albumin and to be essentially free of IgG. This low-endotoxin preparation is intended for serum-free and serum-reduced cell culture applications.A supplementation rate ranging from 0.5 to 2.5 mg/mL has been effective in the production of recombinant proteins, virus particles and monoclonal antibodies in cultured cells.

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $92100 g $2401 kg $1489

Bovine Serum Albumin (BSA), Fraction V—Low-IgG Grade
700-105P

Gemini’s low-IgG BSA is a highly purified, lyophilized powder. This product is processed to provide a minimum of 98% albumin and to be essentially free of immunoglobulin. The pH is adjusted to 7.0. It is used as a blocking reagent in EIA, RIA and ELISA systems, where IgG may interfere with the application.

Ships ambient. Store refrigerated at 2 to 8°C

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $117100 g $3881 kg $2372

Bovine Serum Albumin (BSA), Fraction V—Molecular Biology Grade
700-106P

Gemini’s molecular biology grade BSA is a highly purified, lyophilized powder. This product is processed to provide a minimum of 98% albumin and to be essentially free of both protease and nuclease activity. The pH is adjusted to 7.0. It is commonly used in PCR and other molecular biology applications.

Ships ambient. Store refrigerated at 2 to 8°C

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $128100 g $2961 kg $1831

Bovine Serum Albumin (BSA), Fraction V—Fatty Acid-Free Grade
700-107P

Gemini’s fatty acid-free BSA is a highly purified, lyophilized powder. This product is processed to provide a minimum of 98% albumin and to be essentially free of non-esterified fatty acids. The pH is adjusted to 7.0. It is used as a blocking reagent in EIA, RIA and ELISA systems, where serum fatty acids may interfere with the application.

Ships ambient. Store refrigerated at 2 to 8°C

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $100100 g $2501 kg $1515

Bovine Serum Albumin (BSA), Fraction V—Cohn
700-108P

Gemini’s Cohn fraction BSA is made by a modification of the original cold-ethanol plasma fractionation process developed in 1939 by Professor Edwin Cohn. Its characteristics include a minimum 96% albumin, with a pH of 7.0 – 7.4. This product is suitable as a growth nutrient in tissue culture media, for increasing the viscosity and protein levels in certain antibiotic assay media, to bind inhibitors in growth media, and as a molecular-weight standard.

Ships ambient. Store refrigerated at 2 to 8°C

CAS Number 9048-46-8

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 20 g $82100 g $1991 kg $1224

Bovine Serum Albumin (BSA), Fraction V—Low-Electrolyte Grade
700-109P

Gemini’s low-electrolyte BSA is a highly purified, lyophilized powder. This product is processed to provide a minimum of 97% albumin. The pH is adjusted to 5.2. Conductivity of < 1000 µS in a 10% aqueous solution is typical. It is used in media, enzyme systems, and as a stabilizer for EIA and RIA techniques, where high purity and low electrolyte levels are critical.

Ships ambient. Store refrigerated at 2 to 8°C

*Single-unit price. For inquiries about this product, contact your sales representative.

Product 50 mL $71100 mL $1331 L $796

High Polymer Bovine Serum Albumin (BSA), Fraction V—Solution 30%
700-111

Our high polymer 30% BSA solution is preserved with 0.1% sodium azide. It is often used as a protein stabilizer for antibody and enzyme storage, as well as as a diluent in applications that are sensitive to albumin polymerization.

Ships on ice. Store refrigerated at 2 to 8°C

*Single-unit price. For inquiries about this product, contact your sales representative.