Methylcobalamin Sodium Salt from Mexico
Mecobalamin sodium salt, water-soluble Vitamin B12 coenzyme derivative for oral and sublingual supplements. HTS 2936.26.00.00 applies to this organic salt of B12 base per Chapter Note 5(C)(1), retaining vitamin activity. High bioavailability form preferred in consumer products.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Sodium content declaration critical for electrolyte labeling; stability studies under ICH guidelines required; hygroscopic—seal integrity testing needed