Ethyl (1H-Phenothiazin-2,4,1)carbamate
A chemically defined heterocyclic compound containing a phenothiazine ring-system with an ethyl carbamate substituent at the 2,4,1 position. This compound falls under HTS 2934.30.18.00 as it matches the specific chemical structure described in the subheading for phenothiazine ring-system compounds not further fused. It is typically used as a pharmaceutical intermediate in organic synthesis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing a different heterocyclic ring system
Compounds with non-phenothiazine heterocyclic structures fall under the residual 'other' provision in heading 2934.
If classified primarily by carbamate function without phenothiazine emphasis
Carbamate compounds without specified ring systems may be classified under Chapter 29 nitrogen function headings per classification notes.
If imported as a salt form rather than free base
Organic salts of heterocyclic compounds are classified under heading 2942 according to Chapter 29 note on salts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide detailed chemical analysis certificates (COA, NMR, MS) confirming the exact structure matches HTS 2934.30.18.00 specifications
• Ensure packaging complies with UN/DOT hazardous material regulations if shipped in quantities exceeding exemption limits
• Verify purity levels (>98%) as impurities may trigger reclassification under mixture provisions of Chapter 29
Related Products under HTS 2934.30.18.00
Ethyl Phenothiazinyl Carbamate Pharmaceutical Intermediate
High-purity ethyl (1H-phenothiazin-2,4,1)carbamate produced specifically for use in antipsychotic and antihistamine drug synthesis. Classified under HTS 2934.30.18.00 due to its precise phenothiazine ring structure with ethyl carbamate moiety. Supplied as white to off-white powder with stabilizer for transport.
PhenoCarb-Ethyl™ Research Grade Phenothiazine Derivative
Research-grade ethyl (1H-phenothiazin-2,4,1)carbamate supplied in 1g-100g quantities for medicinal chemistry and SAR studies. This specific isomer fits HTS 2934.30.18.00 due to its defined phenothiazine-carbamate structure. Includes certificate of analysis verifying >99% HPLC purity.
Ethyl Phenothiazine-2,4,1-Carbamate API Precursor
GMP-manufactured ethyl (1H-phenothiazin-2,4,1)carbamate serving as precursor for phenothiazine-based active pharmaceutical ingredients. Precisely matches HTS 2934.30.18.00 structural requirements for unfused phenothiazine carbamates. Packaged in 25kg fiber drums with nitrogen blanket.