Surfactants - Cationic Available — Bulk Only

Dihydrogenated Tallow Dimethyl Ammonium Chloride (Quaternium-18)

CAS 61789-80-8

Cationic, substrate-substantive chemistry for softening, antistatic, and emulsification duty in personal-care and household formulations. The double hydrophobic tail and permanent positive charge make it substantive to negatively charged fibers and surfaces, the basis for its use as a fabric-softening and conditioning active, an antistatic agent, and a cationic emulsifier.

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HS Code
3402.41
At a Glance
Material Family
Surfactants - Cationic
Record Type
Pure compound
Primary Role
Conditioning · Surfactancy
Functional Roles
QUATERNIUM-18
ANTISTATICHAIR CONDITIONINGSURFACTANT - CLEANSING
Industries Served
Applications & Use Cases
  • Fabric softening: Cationic active for rinse-cycle softeners and conditioning formulations.
  • Hair and skin conditioning: Substantive quaternary that deposits on keratin and reduces static.
  • Cationic emulsifier: Stabilizes oil-in-water systems that need a positively charged emulsifier.
  • Antistatic agent: Controls static charge on fibers and surfaces.
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
3402 . 41
Chapter 34
Soap, organic surface-active agents, washing and lubricating preparations, waxes
Heading 34.02
Internationally harmonized (WCO HS)
Subheading 3402.41
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
61789-80-8
INCI Name
QUATERNIUM-18
Synonyms & Trade Names
cationic emulsifying agent DICOCO QUAT DIMETHYL DIHYDROGENATED TALLOW AMMONIUM CHLORIDE Quaternary ammonium emulsifier quaternized surfactant emulsifier
Full Description

A twin-tail cationic (quaternary ammonium) surfactant supplied as CAS 61789-80-8, built on two hydrogenated tallow alkyl chains. The double hydrophobic tail and permanent positive charge make it substantive to negatively charged fibers and surfaces, the basis for its use as a fabric-softening and conditioning active, an antistatic agent, and a cationic emulsifier.

Frequently Asked Questions

What is quat emulsifier used for?

This twin-tail cationic (quaternary ammonium) surfactant, CAS 61789-80-8, is used as a fabric-softening and conditioning active, a cationic emulsifier for oil-in-water systems, and an antistatic agent. Its double hydrophobic tail and permanent positive charge make it substantive to negatively charged fibers and surfaces.

Is BTMS a quat?

BTMS (behentrimonium methosulfate) is a separate quaternary ammonium ingredient and is not this product. This quat emulsifier is a distinct twin-tail cationic surfactant built on two hydrogenated tallow alkyl chains under CAS 61789-80-8; confirm identity against the CAS number when comparing.

Why is this material called a cationic emulsifier?

It carries a permanent positive (quaternary nitrogen) charge, so it stabilizes oil-in-water systems that need a positively charged emulsifier and deposits readily onto anionic substrates like keratin and textile fibers. That same charge underlies its softening and antistatic performance.

What CAS number and HS code apply to quat emulsifier?

It is supplied under CAS 61789-80-8 and classified under HS heading 3402.41 (cationic organic surface-active agents). Verify final import classification with your customs broker for the destination market.

What packaging and MOQ are available for bulk quat emulsifier?

RawSource distributes this surfactant in industrial bulk formats to manufacturers. Pricing varies with volume and market conditions, so submit a bulk RFQ with your target quantity to receive pack sizes, MOQ, lead time, and a CoA/SDS.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.