1-Methylindole from China
1-Methylindole is a modified aromatic indole derivative with a methyl group at the nitrogen position, falling under HTS 2933.99.0500 as a named aromatic heterocycle modification. Commonly used in organic synthesis for pharmaceuticals and as a fragrance intermediate.
Duty Rate — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide structural formula and NMR spectra if requested to distinguish from other indole isomers
• Classify based on principal characteristic group; methyl substitution doesn't change indole heading
• Watch for common pitfall of classifying as 'other heterocyclic' - specific indole derivatives stay here