Strem
Strem Chemicals, established in 1964 and acquired by Ascensus Specialties in 2021, is a manufacturer of high-purity specialty chemicals and metals. Serving academic, industrial, and government R&D laboratories as well as large-scale businesses in the pharmaceutical, microelectronic, chemical, and petrochemical industries, the company combines long-standing expertise with strict quality standards. In addition to its extensive catalogue, Strem also provides custom synthesis services, including high-pressure synthesis, and cGMP manufacturing.
Quality is central to Strem’s mission: to deliver high-purity chemicals with consistency and speed. Most products reach 99% purity, with certain metals achieving up to 99.9999% purity. Rigorous procedures, tailored analytical methods, and detailed catalogues—including indicators such as color and form—guarantee reliability and reproducibility. The company operates under ISO 9001:2015 certification.
Strem’s product range covers more than 6,000 items across metals, inorganics, organometallics, and nanomaterials. Key product lines include metal carbonyls, metal catalysts for organic synthesis, ligands (notably phosphines and N-heterocyclic carbenes), as well as MOCVD and ALD precursors for advanced applications. The portfolio also offers nanomaterials and bulk-scale solutions, ensuring availability from research to commercial production.
