美国Avantor Performance Materials (原名Mallinckrodt Baker ) 
Mallinckrodt Baker公司是一家全球的微电子、实验室、生物技术以及制药化学产品的生产商。符合ISO 9001、ISO 9002认证。我们的产品被全球的半导体芯片制造商使用。从50年代早期，J.T.Baker就和第一个晶体管制造商一起工作，我们的微电子产品就为工业级清洗提供解决方案。
象其他J.T.Baker 化学产品一样, 微电子化学产品也基于坚定奉献给客户优异的品质和深层的技术服务。
很难将长长的产品清单中不同级别的产品通过简单的分类以满足您严格的要求。我们通过比较了不同级别的酸和溶剂以使您更容易的选择您的所需。我们的产品分为一下几种级别：CMOS™, Finyte®, Finyte®-1 和 ULTRYTE® 级等。
 
In 1995, Mallinckrodt Chemical and J.T.Baker formed Mallinckrodt Baker, Inc., a remarkable global chemical company that offers two great brands - the Mallinckrodt and J.T.Baker brands of high purity products for the laboratory, biopharmaceutical, microelectronic and industrial markets. Mallinckrodt Baker’s brands are synonymous with high quality and consistency.

We are a basic manufacturer of chemicals with plant infrastructure to enable us to meet customers’ demands for increasingly purer products. We operate plants and distribution centers around the globe, in Deventer, The Netherlands; Mexico City, Mexico; and Kuala Lumpur, Malaysia as well as our US based operations in Phillipsburg, New Jersey and Paris, Kentucky.

Mallinckrodt Baker is a unit of Covidien.

Mallinckrodt Baker, Inc., based in Phillipsburg, NJ, USA, manufactures and markets high purity fine chemicals under the Mallinckrodt and J.T.Baker brands for the laboratory, biopharmaceutical, microelectronic, and industrial markets.