Calcium Dodecylbenzene Sulfonate from Mexico
Calcium salt of dodecylbenzene sulfonic acid, an overbased detergent additive for lubricants containing only sulfo groups on aromatic hydrocarbon. Fits HTS 2904.10.37.00 per chapter notes on organic salts. Used in engine oils to neutralize acids and prevent deposits.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide salt formation analysis confirming organic calcium sulfonate structure per chapter note 3(C)
• Distinguish TBN (total base number) variants; high TBN may affect classification if overbased
• Include flash point and viscosity specs required for lubricant additive import documentation