Hexachlorobenzene 99% ACS Reagent Grade
High-purity hexachlorobenzene meeting American Chemical Society standards for laboratory use in organic synthesis and calibration. Specifically enumerated under HTS 2903.92.00.00 as halogenated derivative of benzene. Qualifies under Chapter 29 note (a) for chemically defined organic compounds.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| šØš³China | 5.5% | +25.0% | 30.5% |
| š²š½Mexico | 5.5% | ā | 5.5% |
| šØš¦Canada | 5.5% | ā | 5.5% |
| š©šŖGermany | 5.5% | ā | 5.5% |
| šÆšµJapan | 5.5% | ā | 5.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If radioactively labeled for tracer studies
Isotopes and radioactive compounds of Chapter 28 take precedence over Chapter 29 organic classification.
If chlorobenzene precursor rather than fully chlorinated HCB
Less chlorinated derivatives class in earlier 2903.21; only fully hexachloro form uses specific 2903.92.
If diluted in solvent for safe transport per Chapter note (e)
Solvent solutions for transport classified as mixtures in 3824 if solvent imparts specific properties.
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Import Tips & Compliance
ā¢ Include Certificate of Analysis showing <0.1% impurities to maintain Chapter 29 chemical classification
ā¢ Label as 'Research Chemical - Not for Pesticidal Use' to comply with FIFRA Section 3 registration exemptions
ā¢ Declare UN 3077 Environmentally Hazardous Substance packaging requirements for ocean/air transport
Related Products under HTS 2903.92.00.00
Hexachlorobenzene (HCB) Technical Grade
Hexachlorobenzene (ISO) is a chlorinated aromatic hydrocarbon used primarily as an intermediate in organic synthesis and historically as a fungicide. It falls under HTS 2903.92.00.00 as a specifically named halogenated derivative of aromatic hydrocarbons per Chapter 29 note (a). This pure chemical compound contains no impurities that would exclude it from this classification.
DDT (Dichlorodiphenyltrichloroethane) USP Reference Standard
DDT (clofenotane, INN) is the specific organochlorine compound (1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane) used as analytical reference standard for residue testing. Classified under HTS 2903.92.00.00 as the explicitly named halogenated aromatic hydrocarbon derivative. Meets Chapter 29 criteria for separate chemically defined organic compounds.
p,p'-DDT Isomeric Standard 98% Purity
Pure p,p'-DDT isomer (1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane) for environmental monitoring and GC-MS calibration. Falls under HTS 2903.92.00.00 as the specifically named DDT compound. Chemically defined per Chapter 29 note (a) with defined impurities.
Technical DDT 75% Wettable Powder Reference
Standardized technical DDT containing specified HCB impurities for historical pesticide residue studies. Classified under HTS 2903.92.00.00 as specifically named DDT despite formulation. Chapter 29 note (f) allows stabilizers necessary for preservation.
Hexachlorobenzene EPA Method 608 Calibration Standard
Certified reference material of HCB in methanol for wastewater analysis per EPA Method 608. Remains under HTS 2903.92.00.00 as chemically defined compound per Chapter note (e) transport exception. Specifically named halogenated aromatic derivative.