Diazo Red B Base
Diazo Red B Base is an aromatic diazonium salt used in coupling reactions to produce red azo dyes for printing inks and plastics. Classified under HTS 2927.00.50.00 as 'other' diazo-compounds, it meets Chapter 29 requirements for separate chemically defined organic compounds. The diazo group (-N2+) defines its chemical identity.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing heterocyclic quaternary ammonium structure
Certain diazo compounds with heterocyclic rings classify under heading 2933 for heterocyclic compounds rather than simple diazo-compounds.
If for retail-packaged reactive dye intermediates
Diazo components put up for retail sale as reactive dyes fall under Chapter 32 coloring matter provisions.
If supplied as aqueous solution exceeding transport solvent allowances
Solutions beyond Chapter 29 note (e) limits classify as inorganic chemical preparations.
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Import Tips & Compliance
• Store and ship below 5°C to prevent decomposition during transit; include GHS safety data sheets specifying diazonium salt hazards; check for anti-dumping duties on Chinese-origin dye intermediates
Related Products under HTS 2927.00.50.00
Fast Yellow GC Base Diazo Compound
Fast Yellow GC Base is a diazo compound used as a dye intermediate in the production of yellow azo pigments for textiles and inks. It falls under HTS 2927.00.50.00 as a diazo-compound not specifically provided for elsewhere in heading 2927. This chemical is a separate, chemically defined organic compound containing the diazo functional group.
Azoxybenzene
Azoxybenzene (C6H5N(O)NC6H5) is an azoxy compound used as a reagent in organic synthesis and as an intermediate for liquid crystal materials. It qualifies for HTS 2927.00.50.00 as an azoxy-compound, being a separate chemically defined organic compound per Chapter 29 note (a). The azoxy functional group distinguishes it from other nitrogen compounds.
4-Methoxybenzenediazonium Tetrafluoroborate
This stable diazonium salt serves as a Sandmeyer reaction intermediate and photoinitiator precursor in polymer chemistry. HTS 2927.00.50.00 covers it as a diazo-compound salt, with classification following the organic diazo component per Chapter 29 note on salts. The tetrafluoroborate counterion doesn't alter the organic compound classification.
p-Nitrobenzenediazonium Fluoborate
Used in pigment manufacturing and as a reagent for azo coupling, this nitro-substituted diazonium salt falls under HTS 2927.00.50.00. The diazo function takes precedence over nitro group per Chapter 29 classification rules. It's supplied as a stable solid for industrial dye synthesis.
Benzeneazodimethylaniline (Solvent Yellow 2)
This azo compound serves as a solvent dye for petroleum products and plastics coloration. Although used as coloring matter, its import as pure chemical compound classifies under HTS 2927.00.50.00 per Chapter 29 precedence over Chapter 32. The azo (-N=N-) linkage defines its chemical heading.
4-(Phenylazo)aniline
An aminoazobenzene derivative used as a dye intermediate and coupling component in azo pigment synthesis. HTS 2927.00.50.00 applies as an azo-compound with the characteristic -N=N- linkage between aromatic rings. Meets Chapter 29 requirements for chemically defined organic compounds.