Thiophosgene (Carbonyl Sulfide Dichloride) from Mexico
Thiophosgene (CSCl2) is a red liquid reagent used in organic synthesis, classified as a chloride of nonmetal (thiocarbonyl chloride) under HTS 2812.19.00.90 'other'. It meets chemically defined criteria in Chapter 28 for halide oxides/halides of nonmetals like carbon.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Ship under UN 2474 with refrigeration if required; check temperature-controlled storage declarations
• Provide REACH or TSCA pre-manufacture notices for U.S. entry; pitfall is missing impurity thresholds
• Label as 'research chemical only' to avoid end-use scrutiny