High-Purity Trityl Chloride for Oligonucleotide Production
High-purity trityl chloride, also known as triphenylmethyl chloride, is specially purified for use in oligonucleotide production where it attaches dimethoxytrityl (DMT) groups. As a separate chemically defined halogenated derivative of an aromatic hydrocarbon, it falls under tariff item 2903.99.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| π¨π³China | Free | β | Free |
| π²π½Mexico | Free | β | Free |
| πΊπΈUnited States | Free | β | Free |
| π©πͺGermany | Free | β | Free |
| π―π΅Japan | Free | β | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is used as a pharmaceutical intermediate with heterocyclic structure
Nucleoside derivatives may fall under heterocyclic compounds.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item β and can price the duty on it in the same conversation.
Import Tips & Compliance
β’ Maintain documentation showing the product is a separate chemically defined compound, not a mixture
β’ If the product is in solution, confirm the solvent is only for safety or transport
β’ Ensure the purity level is clearly stated on shipping documents to support classification
Related Products under Tariff item 2903.99.00
1,1-Dichloro-2,2-bis(p-ethylphenyl)ethane
1,1-Dichloro-2,2-bis(p-ethylphenyl)ethane is a chlorinated diaryl ethane compound, a separate chemically defined organic compound. It is classified under tariff item 2903.99.00 as an 'Other' halogenated derivative of aromatic hydrocarbons.
1,2,3-Trichlorobenzene
1,2,3-Trichlorobenzene is a halogenated derivative of benzene with three chlorine atoms, a separate chemically defined organic compound. It is classified under tariff item 2903.99.00 as an 'Other' halogenated derivative of aromatic hydrocarbons.
1,2,4-Tribromo-2-phenylpropane (Tribromocumene)
1,2,4-Tribromo-2-phenylpropane, also known as tribromocumene, is a brominated aromatic compound with three bromine atoms on a cumene structure. It is a chemically defined halogenated derivative of an aromatic hydrocarbon, used as a reactive intermediate in producing brominated flame retardants.
1,2,4-Trichlorobenzene Technical Grade
1,2,4-Trichlorobenzene technical grade is a halogenated derivative of benzene, used in dyestuff and pesticide synthesis. It is a separate chemically defined organic compound, classified under tariff item 2903.99.00 as 'Other'.
1,3,5-Trichlorobenzene
1,3,5-Trichlorobenzene is a symmetrical trichlorinated benzene derivative, used in herbicide and dye production. It is a separate chemically defined organic compound, classified under tariff item 2903.99.00 as an 'Other' halogenated derivative of aromatic hydrocarbons.
2-Chloro-5-bromo-Ξ±,Ξ±,Ξ±-trifluorotoluene
2-Chloro-5-bromo-Ξ±,Ξ±,Ξ±-trifluorotoluene is a polyhalogenated aromatic hydrocarbon, with chlorine, bromine, and a trifluoromethyl group on a toluene backbone. It is a separate chemically defined organic compound, qualifying under tariff item 2903.99.00 as an 'Other' halogenated derivative of aromatic hydrocarbons.