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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If contains inorganic salts exceeding organic compound
Inorganic salts of organic compounds classify with inorganic portion per Chapter 29 note 1(C)(1).
If for laboratory reagents not purely chemically defined
Composite lab diagnostic reagents shift to Chapter 38 even if containing Chapter 29 compounds.
If saturated polycarboxylic acid saturated derivatives
Non-aromatic versions classify earlier in Chapter 29 sequence.
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Import Tips & Compliance
• Include ACS assay certificate; customs frequently tests reagent chemicals for purity claims
• Declare as 'for laboratory research use only' to avoid end-use restrictions on dye intermediates
• Small package imports (<5kg) still require full chemical import registration via EPA/TSCA
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.
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.
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).