Cetyltrimethylammonium Bromide (CTAB)
CTAB is a quaternary ammonium cationic surfactant with an aromatic-modified structure, widely used in laboratory applications for DNA extraction and as an antimicrobial agent. It qualifies under heading 3402 as it produces stable emulsions and lowers surface tension per the chapter note test. The aromatic modification places it specifically in 3402.41.10.00.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a chemically defined pure compound without surfactant claims
Chapter note excludes separate chemically defined compounds from Chapter 34, moving to Chapter 29 organic chemicals.
If non-aromatic cationic like pure alkyl variants
Lack of aromatic modification shifts to other cationic surfactants in 3402.42.
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Import Tips & Compliance
• Include lab test results confirming 0.5% solution meets emulsion stability and surface tension criteria from heading 3402 note
• Label clearly as 'not for direct retail sale' to prevent misclassification as a washing preparation
• Watch for purity levels; technical grade >95% stays in 3402.41, diluted forms may go to 3402.90
Related Products under HTS 3402.41.10.00
Methylbenzethonium Chloride
A synthetic aromatic cationic surfactant applied in topical antiseptics and preservative solutions. Complies with 3402 surface tension and emulsion standards, placed in 3402.41.10.00.
Domiphen Bromide
Domiphen bromide, an aromatic quaternary cationic surfactant, functions in oral care and antimicrobial mouthwashes. Meets Chapter 34 agent definitions for 3402.41.10.00.
Cocobenzyldimethylammonium Chloride
Blends coconut-derived chains with benzyl aromatic group, cationic surfactant for industrial cleaning. 3402.41.10.00 due to modified aromatic cationicity.
Stearyl Dimethyl Benzyl Ammonium Chloride
Long-chain aromatic cationic surfactant for antistatic and emulsifying in textiles. Fits 3402.41.10.00 criteria perfectly.
Myristyl Dimethyl Benzyl Ammonium Chloride
C14-chain modified aromatic cationic for preservative and biocide uses. 3402.41.10.00.
Tallow Alkyl Dimethyl Benzyl Ammonium Chloride
Animal-fat derived with aromatic benzyl, cationic for disinfectants. 3402.41.10.00.