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Thermo Scientific Biochemicals

Affymetrix USB brand biochemicals, now sold under theThermo Scientific brand, are available throughout with "J" in front of the prior catalog number (searchable without "J") and on Thermo Fisher Scientific global sites. SDS and CoA documents for these products can be found on Thermo Scientific branded products include ultrapure buffers, substrates, additives, and reagents for a wide range of molecular biology, biochemistry, and cell culture applications.

High purity, dependable reagents are critical in obtaining reproducible results. Our biochemicals are meticulously tested for impurities to ensure their suitability for the dedicated applications. Top life science companies rely on these products to consistently meet their research and manufacturing requirements. is also a home site for Alfa Aesar branded biochemicals. To browse the combined Thermo Scientific and Alfa Aesar biochemicals range by product category, choose the subcategory of your interest in the life science section: or search by a commonly used product name.


Life Science

Metals & Materials


Analytical & Labware