2932.20.05.00/4-Methylumbelliferone (CAS 90-33-5)/Germany

4-Methylumbelliferone (CAS 90-33-5) from Germany

4-Methylumbelliferone (4-MU) is a methylcoumarin derivative classified in HTS 2932.20.0500 for its coumarin lactone structure. Widely used as a fluorogenic substrate in biochemical assays and as a laser dye.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%

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Import Tips

• Provide fluorescence emission spectra data to confirm identity for lab/research imports

• Declare if crystalline powder or solution form; pure compound stays in 2932

• Include end-use statements for research chemicals to avoid pharmaceutical scrutiny