Diglyme (Diethylene Glycol Dimethyl Ether) from Japan
Diglyme is a heterocyclic diether with oxygen hetero-atoms in flexible ring conformation, used in organometallic chemistry. HTS 2932.99.90 as other oxygen heterocycles distinguished from acyclic ethers.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Anhydrous grade requires Karl Fischer water analysis (<10 ppm)
• Molecular sieve packaging maintains purity classification
• Distinguish from higher glymes potentially classified as polymers