1-Methylindole from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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