High Purity Naphthalic Anhydride for Dye Synthesis
Ultra-high purity naphthalic anhydride (>99%) specifically packaged for use in perylene dye manufacturing. Falls squarely under HTS 2917.39.0800 as a separate chemically defined aromatic polycarboxylic anhydride per Chapter 29 note (a). No added substances render it suitable for specific use beyond 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 nitrogen heterocyclic ring as primary structure
Certain naphthalic anhydride derivatives with additional heteroatoms may classify under nucleic acid derivatives if meeting ring criteria.
If for industrial use as fluorescent brightening agent
Post-reaction products used directly as synthetic fluorescent agents move to Chapter 32 per exclusion note (g).
If other dibasic aromatic anhydrides not specified elsewhere
Catch-all for aromatic anhydrides; naphthalic specifically carved out in 2917.39.0800 but misdescription could default here.
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Import Tips & Compliance
• Label containers with GHS pictograms for skin corrosion/serious eye damage; critical for DOT/CBP hazardous materials compliance
• Provide end-use statement if requested; dye intermediate status prevents shift to finished colorant classification
• Avoid importing in consumer-ready packaging (≤300g) which could trigger retail set exclusions under Chapter notes
Related Products under HTS 2917.39.08.00
Naphthalic Anhydride 98% Pure
Naphthalic anhydride is a white to pale yellow crystalline powder used primarily as an intermediate in the synthesis of dyes, pigments, and fluorescent brighteners. This specific grade at 98% purity falls under HTS 2917.39.0800 as it is the pure aromatic polycarboxylic anhydride derived from naphthalene-1,8-dicarboxylic acid. It meets Chapter 29 requirements for separate chemically defined organic compounds without disqualifying additions.
Industrial Grade Naphthalic Anhydride Flakes
Naphthalic anhydride in flake form for bulk industrial use in pigment manufacturing and polymer modification. Classified under HTS 2917.39.0800 as the pure aromatic anhydride without disqualifying impurities or additions. The flaked physical form facilitates handling but does not affect chemical classification under Chapter 29.
Naphthalic Anhydride Technical Grade Powder
Technical grade naphthalic anhydride powder (95-98% purity) with minimal impurities for general chemical synthesis. Classified in HTS 2917.39.0800 as it remains a separate chemically defined compound under Chapter 29, not a mixture requiring Chapter 38 classification. Standard anti-caking agent permitted per note (f).
Reagent Grade Naphthalic Anhydride ACS
ACS reagent grade naphthalic anhydride meeting American Chemical Society specifications for laboratory use. HTS 2917.39.0800 applies as pure aromatic polycarboxylic anhydride, even for lab quantities, since Chapter 29 covers all purity levels of chemically defined compounds. Lab packaging does not trigger retail exclusions.