3,3'-Dichlorobenzidine 2HCl Pharmaceutical Grade
Pharmaceutical-grade 3,3'-Dichlorobenzidine dihydrochloride meeting USP standards, specifically identified under HTS 2921.59.80.10. Used as synthetic intermediate for pharmaceutical research and hormone derivative production per Chapter 29 notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used primarily as hormone synthesis intermediate
Per Chapter 29 note 7(b), certain hormone intermediates may classify under 2937 even if chemically amine-function compounds.
If when put up in dosage form for laboratory pharmaceutical research
Pharmaceutical intermediates in measured doses for research fall under Chapter 30.
If purity below pharmaceutical standards but still specified chemical
Technical/industrial grade uses residual 'other' subcategory rather than specific pharma-grade identification.
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Import Tips & Compliance
• Include Certificate of Analysis (CoA) with batch-specific purity >99% and heavy metals testing for pharmaceutical grade verification
• Declare intended use as chemical intermediate, not finished drug, to maintain Chapter 29 classification
• Check for REACH-like compliance documentation if sourced from EU manufacturers
Related Products under HTS 2921.59.80.10
3,3'-Dichlorobenzidine Dihydrochloride
3,3'-Dichlorobenzidine dihydrochloride is a diamine salt classified under HTS 2921.59.80.10 as an aromatic polyamine derivative and its salt. It is primarily used as a key intermediate in the production of diaminobenzidine-based azo pigments and dyes.
o-Dianisidine Dihydrochloride Equivalent (3,3'-Dichlorobenzidine 2HCl)
High-purity 3,3'-Dichlorobenzidine dihydrochloride used as o-dianisidine equivalent in pigment manufacturing, classified specifically under HTS 2921.59.80.10. Meets Chapter 29 requirements for chemically defined aromatic polyamine salts.
3,3'-Dichlorobenzidine Dihydrochloride 99% Technical Grade
Technical grade 3,3'-Dichlorobenzidine dihydrochloride at 99% purity for industrial dye synthesis, specifically enumerated under HTS 2921.59.80.10. Qualifies as separate chemically defined organic compound per Chapter 29 note 1(a).