Methyllithium (15% in Diethyl Ether) from Canada
Methyllithium solution contains lithium-carbon bonds defining organolithium classification under 2931.90.90. Used as strong base/non-nucleophile in pharma synthesis; chapter note V(D) classifies metal alcoholates similarly.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• UN3393 solution packaging; ether stabilizer must be declared for flammability
• Nucleophilic reagent—DEA watches for diversion to clandestine synthesis
• Verify solvent content doesn't trigger Ch38 mixture classification