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).
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If contains >1% impurities affecting chemical identity
Mixtures not qualifying as 'separate chemically defined compounds' per Chapter 29 note 1(a) classify in 3824.
If for other specified aromatic polyamines like diaminodiphenylmethane salts
Different specific chemical identities use separate statistical suffixes within 2921.59.
If classified as other organic compounds with nitrogen function
Broader nitrogen-heterocyclic compounds may fall under 2942 if not strictly aromatic polyamines.
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Import Tips & Compliance
• Specify 'technical grade' and exact purity percentage on entry documents to justify 2921.59.80.10 specific classification
• Provide shipping papers indicating stabilizer-free packaging to meet Chapter 29 note 1(f) requirements
• Monitor for CBP requests for structural formula confirmation matching dichlorobenzidine dihydrochloride
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.
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.