2933.72.00.00/Methyprylon USP Reference Standard/Japan

Methyprylon USP Reference Standard from Japan

Certified USP reference standard of Methyprylon, a piperidinedione sedative-hypnotic, provided for quality control and analytical testing in pharmaceutical labs. Falls under HTS 2933.72.00.00 as specifically named heterocyclic lactam compound. Supplied in precise milligram quantities for calibration purposes.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.04.6215%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate

9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

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Import Tips

• Ship with tamper-evident seals and include USP certificate to verify reference standard authenticity

• Declare exact quantity (typically <1g) and 'for laboratory use only' to qualify for research import exemptions

• Check DEA scheduling status as methyprylon derivatives may require import permit despite reference standard status