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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-reacted to form pigment lake or toners
Pigment preparations and lakes containing the diamine derivative classify as finished colorants in 3204.
If when supplied with anti-dusting agents exceeding Chapter 29 note 1(g) limits
Additives rendering product suitable for specific industrial use move classification to Chapter 38.
If imported as saturated acyclic hydrocarbon derivative precursor
Different chemical structure without aromatic polyamine function would classify earlier in Chapter 29.
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Import Tips & Compliance
• Reference CAS No. 612-83-9 in commercial invoice and provide synonym cross-reference documentation
• Segregate from finished pigments during import to avoid Chapter 32 reclassification
• Include Material Safety Data Sheet (MSDS) detailing handling as suspected carcinogen
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.
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.
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).