VanDeMark Chemical, Inc. manufactures phosgene, phosgene derivatives, custom chemicals, and proprietary chemicals for the pharmaceutical, agricultural-chemical, polymer, and fine chemical industries. Its products are used in dyes and pigments, pharmaceuticals, polymers, smoke suppressants, coatings, sealants, biocides, photographic chemicals, agricultural chemicals, medical devices, and adhesives applications. The company serves customers primarily in North America, Europe, and Asia. VanDeMark Chemical, Inc. was formerly known as ISOCHEM, Inc. The company was founded in 1932 and is headquartered in Lockport, New York. VanDeMark Chemical, Inc. is a former subsidiary of Isochem SA.