Sigma-Aldrich

Sigma-Aldrich is one of the most recognized brands in the global scientific community and forms a core part of the life science business of Merck KGaA, Darmstadt, Germany (operating as MilliporeSigma in the US and Canada). Established in 1975 through the merger of Sigma Chemical Company and Aldrich Chemical Company, it has become a leading supplier of chemicals, reagents, and laboratory products for both research and industrial applications.

The brand’s portfolio covers over 300,000 products, serving customers in pharmaceutical and biotechnology research, academic laboratories, environmental testing, food and beverage analysis, diagnostics, and industrial manufacturing. Sigma-Aldrich products are known for their quality, consistency, and extensive technical documentation.

Core Product Categories

1. Laboratory Chemicals & Reagents

   • Organic and inorganic chemicals in multiple purity grades

   • Solvents, acids, salts, and analytical-grade reagents

   • High-purity chemicals for trace analysis and spectroscopy

2. Biochemicals & Life Science Reagents

   • Antibodies, enzymes, proteins, and peptides

   • Buffers, stains, dyes, and indicators

   • Molecular biology reagents such as PCR kits, nucleotides, and cloning vectors

3. Cell Culture & Molecular Biology

   • Classical and serum-free cell culture media

   • Supplements, sera, and growth factors

   • Transfection reagents and CRISPR genome editing kits

4. Analytical Standards & Reference Materials

   • Certified reference materials for chromatography and spectroscopy

   • Standards for pharmaceutical, food, and environmental testing

   • Impurity reference standards for regulatory compliance

5. Specialty Chemicals for Industry

   • Custom synthesis services

   • High-purity process chemicals for electronics and biomanufacturing

   • Raw materials for active pharmaceutical ingredient (API) production

In addition to Sigma-Aldrich, Merck’s key life science brands include Millipore (filtration and purification solutions), SAFC (biopharmaceutical raw materials and services), Milli-Q (ultrapure water systems), and Supelco (analytical and chromatography products).

You can browse our main Merck product offerings in the collections below. If you are looking for other Merck products not listed here, feel free to contact us for a quotation.