Ethinamate (1-Ethynylcyclohexyl Carbamate) from Japan
Pure ethinamate, systematically named 1-ethynylcyclohexyl carbamate, supplied as white powder for forensic and toxicological reference standards. Classified in HTS 2924.24.00.00 as the specific INN compound among cyclic carbamate derivatives. Used in calibration of GC-MS instruments for drug detection.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include GC-MS reference chromatogram to confirm identity and purity
• Ship under IATA chemical non-dangerous goods provisions
• Pre-notify customs of forensic/toxicology end-use to expedite clearance