Gentisate Sodium Hemihydrate from Mexico
Sodium gentisate hemihydrate, salt of the named gentisic acid, remains classified under HTS 2918.29.2000 as water of hydration doesn't change chemical definition. Used in injectables and topicals.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Karl Fischer titration for 0.5 H2O; CAS 16023-90-0 declaration
• Sterile grade needs additional DMF filing