Surfactants - Anionic Available — Bulk Only

Sodium Dodecylbenzenesulfonate (SDBS, LAS)

CAS 25155-30-0 · Formula C18H29NaO3S · MW 348.5 g/mol

A workhorse anionic surfactant supplying detergency and emulsification across laundry, institutional, and industrial cleaning systems. It is used as the primary detergent active in heavy-duty laundry, dishwashing, and hard-surface cleaners, and as an emulsifier and wetting agent in industrial formulations.

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HS Code
3402.31
At a Glance
Material Family
Surfactants - Anionic
Record Type
Pure compound
Primary Role
Cleaning / Degreasing · Surfactancy
Functional Roles
SODIUM DODECYLBENZENESULFONATE
CLEANSINGSURFACTANT - CLEANSING
Applications & Use Cases
  • Detergents: Primary surfactant in laundry and dishwashing formulations
  • Industrial cleaners: Active in vehicle, metal, and specialty cleaners
  • Emulsifier: Emulsifying agent in industrial formulations
  • Textile processing: Wetting and detergent agent in textile operations
Physical Properties
Physical Description
Sodium dodecylbenzenesulfonate is a white to light yellow flakes, granules or powder. It is soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used as a synthetic detergent
Appearance
White to light yellow flakes, granules, or powder
Boiling Point
Foams as water boils. 100 °C
Melting Point
> 300 °C
Flash Point
> 93 °C
Solubility
Water solubility = 8X10+5 ug/l at 20-25 °C
Density
1 at 20 °C for 60% slurry
Vapor Density
> 1 (Relative to Air)
LogP
log Kow = 0.45
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 . 31
Chapter 34
Soap, organic surface-active agents, washing and lubricating preparations, waxes
Heading 34.02
Internationally harmonized (WCO HS)
Subheading 3402.31
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
25155-30-0
Molecular Formula
C18H29NaO3S
Molecular Weight
348.5 g/mol
IUPAC Name
sodium 2-dodecylbenzenesulfonate
INCI Name
SODIUM DODECYLBENZENESULFONATE
PubChem CID
InChI Key
HFQQZARZPUDIFP-UHFFFAOYSA-M
Synonyms & Trade Names
Abeson nam Dodecyl benzenesulfonic acid, sodium salt Santomerse 3 Sulframin 85 SDBS Sulfapolu Sulfuril Sulfaril paste Ultrawet KX Ultrawet SK Benzenesulfonic acid, dodecyl-, sodium salt Sodium laurylbenzenesulfonate Richonate 45B Sulframin 40RA Ultrawet 60K Detergent HD-90 Santomerse No. 1 Stepantan DS 40 Trepolate F 40 Witconate 60 B
Full Description

Sodium dodecylbenzenesulfonate (CAS 25155-30-0), abbreviated SDBS and the sodium salt of linear alkylbenzene sulfonate (LAS), is an anionic surfactant. It is used as the primary detergent active in heavy-duty laundry, dishwashing, and hard-surface cleaners, and as an emulsifier and wetting agent in industrial formulations.

Frequently Asked Questions

What is another name for sodium dodecylbenzenesulfonate?

Sodium dodecylbenzenesulfonate (CAS 25155-30-0) is abbreviated SDBS and is the sodium salt of linear alkylbenzene sulfonate (LAS). It is an anionic surfactant used as the primary detergent active in cleaning formulations.

What products contain sodium dodecylbenzenesulfonate?

It is the primary surfactant in heavy-duty laundry detergents, dishwashing liquids, and hard-surface and industrial cleaners (vehicle, metal, and specialty). It also serves as an emulsifier and wetting agent in industrial and textile-processing formulations.

What is the molecular formula of sodium dodecylbenzenesulfonate?

SDBS has the formula C18H29NaO3S (CAS 25155-30-0). It is the sodium salt of dodecylbenzenesulfonic acid (LAS).

What HS code is sodium dodecylbenzenesulfonate?

It is classified under HS 3402.31 (linear alkylbenzene sulfonic acids and their salts). Confirm the destination-country tariff line and request the CoA and SDS with your order.

How is bulk sodium dodecylbenzenesulfonate supplied?

It is supplied to detergent and industrial-cleaner manufacturers as a powder, slurry, or solution in bags, drums, or totes depending on grade. Request a bulk quote with your target volume and active-content spec.

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.