Country of Origin of Refined Acetonitrile Remains Source of Raw Chemical, Says CBP

The country of origin of analytical-grade acetonitrile for government procurement purposes is the source of the crude acetonitrile that then undergoes a refining process, said CBP in a final determination (here). Though analytical grade-acetonitrile produced in the U.S. by Sigma-Aldrich Corporation has a different use than the crude Chinese acetonitrile the company imports for refining – the refined product is suitable for testing of instruments like mass spectrometers and liquid chromatographers – CBP has “consistently held that refining or purification of a crude substance does not generally effect a substantial transformation, it said. The country of origin of the analytical-grade acetonitrile therefore remains China, said CBP.