4-Diazo-2,5-Dibutoxyphenyl Morpholine
This diazo compound serves as a key coupling component in color photographic film development, forming azo dyes upon reaction with couplers. It falls under HTS 2927.00.25.00 as a diazo-type photographic chemical used specifically in photosensitive materials for imaging processes.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically for photographic applications
Diazo compounds without proven photographic end-use fall under the general 'other' category in the same heading.
If when pre-reacted into synthetic azo dyes
Once converted to finished azo coloring matter, classification shifts to Chapter 32 synthetic dyes.
If supplied as prepared photographic solution
Diazo chemicals dissolved in solvents for direct photo processing move to Chapter 37 as chemical preparations.
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Import Tips & Compliance
• Provide certificates of analysis confirming diazo purity and photographic-grade specifications to avoid reclassification
• Declare exact chemical composition and CAS number on commercial invoice to comply with TSCA import requirements
• Avoid bulk packaging that suggests industrial non-photographic use, which could trigger Chapter 28 scrutiny
Related Products under HTS 2927.00.25.00
2-Diazo-1-Naphthol-4-Sulfonic Acid
A diazo coupling agent used in diazo-type copying papers and films, reacting to produce visible azo images upon light exposure. Classified under HTS 2927.00.25.00 due to its role in light-sensitive photographic reproduction processes.
Fast Red Salt RC Diazo Compound
Commercial diazo salt formulation for high-speed photographic coupler reactions in color print materials. HTS 2927.00.25.00 applies to this photographic chemical due to its specialized use in image-forming azo dye processes.
p-Diazo-N,N-Dimethylaniline Zinc Chloride
Stabilized double salt used in instant photographic developers for rapid azo coupling in print materials. Falls under HTS 2927.00.25.00 as a photographic diazo compound per Chapter 29 coordination compound rules.
Diazo Blue RC Stabilized Salt
Photographic diazo coupler producing blue azo dyes in multilayer color films during development. HTS 2927.00.25.00 classification reflects its exclusive use in photosensitive imaging chemistry.
3,3'-Dimethoxybiphenyl-4,4'-Diazonium Salt
Complex diazo compound for high-resolution photographic printing plates and films. Classified in HTS 2927.00.25.00 for its function in light-activated azo imaging chemistry.
Tetrazolium Blue Chloride
Diazo-tetrazolium salt used in photographic redox imaging and viability staining for film quality control. HTS 2927.00.25.00 covers this as a photographic chemical despite dual lab uses.