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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the phenothiazine ring is hydrogenated
Hydrogenated phenothiazine derivatives fall under heading 2933 for partially hydrogenated heterocyclic compounds.
If imported as <5% solution in organic solvent
Chemical mixtures below purity thresholds may classify as preparations under Chapter 38 rather than pure compounds.
If for industrial bulk packaging without pharma-grade certification
Non-pharmaceutical grade carbamate derivatives may classify under alcohol derivatives if not meeting Chapter 29 purity standards.
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
• Include end-use statement specifying pharmaceutical intermediate application to avoid dual-use chemical scrutiny
• Maintain cold chain documentation if required for stability during ocean freight transit
• Label with GHS pictograms and safety data sheets compliant with OSHA HazCom standards
Related Products under HTS 2934.30.18.00
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.
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.