Pharmaceutical API Aspirin Acid Microns
Micronized o-acetylsalicylic acid particles optimized for tablet compression in API production. As a separate chemically defined compound per Chapter 29(a), it imports under HTS 2918.22.1000.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If blended with lubricants as direct compression mix
Mixtures of isomers or preparations exclude from pure compound headings
If industrial end-use without pharma grade
End use (retail vs industrial) may influence but notes prioritize chemical definition
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Import Tips & Compliance
• Provide particle size distribution report; ensure GMP compliance docs
• Beware of FDA prior notice for API imports
Related Products under HTS 2918.22.10.00
USP Grade O-Acetylsalicylic Acid Powder
Pharmaceutical-grade o-acetylsalicylic acid powder meeting USP standards for purity, used primarily as the active ingredient in aspirin formulations. This chemically defined organic compound with a carboxylic acid and phenol function falls under HTS 2918.22.1000 as pure aspirin acid, separate from finished tablets or mixtures.
PhEur O-Acetylsalicylic Acid Crystals
European Pharmacopoeia compliant crystalline o-acetylsalicylic acid for API synthesis in analgesic drugs. As a pure carboxylic acid with phenol function, it qualifies under HTS 2918.22.1000 per Chapter 29 notes defining separate organic compounds.
Bulk Industrial Aspirin Acid Flakes
Flaked o-acetylsalicylic acid for industrial-scale synthesis of derivatives or veterinary analgesics. This separate, chemically defined compound with additional oxygen function is specifically named in HTS 2918.22.1000.
ACS Reagent O-Acetylsalicylic Acid
American Chemical Society reagent-grade pure o-acetylsalicylic acid for laboratory analytical standards. Falls under HTS 2918.22.1000 as a chemically defined carboxylic acid with phenol function, not a finished preparation.
Stabilized O-Acetylsalicylic Acid Granules
Granular o-acetylsalicylic acid with minimal stabilizer for transport preservation, compliant with Chapter 29 note (f). Used in pharma intermediates; classified as pure acid under HTS 2918.22.1000.
Research Grade O-Acetylsalicylic Acid
High-purity o-acetylsalicylic acid for R&D in drug discovery and synthesis studies. Specifically covered as pure aspirin acid in HTS 2918.22.1000, adhering to Chapter 29 purity notes.