Methacrylamide for Contact Lens Production
Specialty methacrylamide grade optimized for hydrophilic contact lens monomer blends. Still classified as pure acyclic amide (2924.19.11.30) since no formulation additives present; end-use doesn't affect pure compound status.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-polymerized into contact lens prepolymer
Epoxide or polymerized forms classify in Chapter 39 as finished polymers.
If blended with hydrophilic monomers for direct lens casting
Formulations for specific medical use constitute preparations.
If supplied as sterile medical device component
Sterile pharmaceutical goods for retail/medical sale.
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Import Tips & Compliance
• Include end-use statement but emphasize pure compound status for Chapter 29 classification
• Biocompatibility testing documentation may be required for medical device supply chain
• Ensure no cross-contamination with lens care solution components
Related Products under HTS 2924.19.11.30
Methacrylamide Monomer
Methacrylamide is an acyclic amide-function compound with the chemical formula CH2=C(CH3)CONH2, classified under HTS 2924.19.11.30 as a derivative of acrylic acid amide. It serves as a key monomer in polymerization reactions for producing specialty polymers and resins.
Methacrylamide 98% Technical Grade
Technical grade methacrylamide at 98% purity, an acyclic carboxamide used in adhesive formulations and hydrogel production. Falls under HTS 2924.19.11.30 as it meets criteria for chemically defined organic compounds with minimal impurities.
Methacrylamide Flake Form
Methacrylamide supplied in stable flake form to minimize dust and polymerization risk during handling. Classified under 2924.19.11.30 as pure acyclic amide; anti-dusting agent permitted only for safety per Chapter note (g).
High Purity Methacrylamide for Pharmaceuticals
Pharmaceutical grade methacrylamide (>99.5% purity) used as intermediate in drug conjugate synthesis. Meets Chapter 29 (a) criteria as separate chemically defined compound, specifically under acyclic amides HTS 2924.19.11.30.
Methacrylamide with MEHQ Stabilizer
Methacrylamide stabilized with 100-400 ppm MEHQ (monomethyl ether hydroquinone) to prevent polymerization during storage/transport. Permissible stabilizer per Chapter 29 note (f); remains classified as pure methacrylamide under 2924.19.11.30.
Methacrylamide Distillation Residue (Purified)
Purified distillation bottoms containing primarily methacrylamide with trace amide isomers. Qualifies under 2924.19.11.30 as chemically defined methacrylamide meeting Chapter 29 purity standards.