Dipropyl Ketone (4-Heptanone) from Japan
Dipropyl ketone (CH3CH2CH2COCH2CH2CH3), or 4-heptanone, is an acyclic ketone used in organic synthesis and as a high-boiling solvent. It is classified in HTS 2914.19.00.00 as 'other' acyclic ketones without additional oxygen functions, per Chapter 29 definitions. This ensures proper distinction from aromatic or quinone structures.
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
• Include GC-MS reports proving chemical purity >98% to avoid mixture classification; comply with VOC regulations
• Avoid common error of declaring as 'ketone oil' which triggers 1518/1522 vegetable oil headings