Surfactants - Nonionic Available — Bulk Only

PEG-5 Undecyl Ether (Undeceth-5)

CAS 34398-01-1 · Formula C13H28O2 · MW 216.36 g/mol

A short-chain alcohol ethoxylate used for wetting, emulsifying and surface activity. It functions as a surfactant, emulsifier and wetting agent.

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HS Code
3402.42
At a Glance
Material Family
Surfactants - Nonionic
Record Type
Pure compound
Primary Role
Cleaning / Degreasing · Surfactancy
Functional Roles
UNDECETH-5
SURFACTANT - CLEANSINGSURFACTANT - EMULSIFYING
Applications & Use Cases
  • Surfactant: surface-active and wetting agent in cleaning systems
  • Emulsification: oil-in-water emulsifier for oil-containing formulations
  • Detergency: detergent component in cleaning blends
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 . 42
Chapter 34
Soap, organic surface-active agents, washing and lubricating preparations, waxes
Heading 34.02
Internationally harmonized (WCO HS)
Subheading 3402.42
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
34398-01-1
Molecular Formula
C13H28O2
Molecular Weight
216.36 g/mol
IUPAC Name
2-undecoxyethanol
INCI Name
UNDECETH-5
PubChem CID
InChI Key
KLMGMPDXSPSCOC-UHFFFAOYSA-N
Synonyms & Trade Names
2-undecyloxy-1-ethanol 2-(UNDECYLOXY)ETHANOL 2-undecoxyethanol Ethanol, 2-(undecyloxy)- 2-(Undecyloxy)ethan-1-ol 2-(Undecyloxy)-ethanol Undeceth-1 Undecyl ethyleneglycol monoether Monochamol; 2-undecyloxyethan-1-ol 2-(undecyloxy)ethanol, AldrichCPR
Full Description

PEG-5 undecyl ether (undeceth-5, CAS 34398-01-1) is a nonionic surfactant formed by ethoxylating undecyl alcohol with about 5 moles of ethylene oxide. It functions as a surfactant, emulsifier and wetting agent.

Frequently Asked Questions

What is PEG-5 undecyl ether?

PEG-5 undecyl ether (undeceth-5, CAS 34398-01-1) is a nonionic surfactant formed by ethoxylating undecyl alcohol with about 5 moles of ethylene oxide. It functions as a surfactant, emulsifier and wetting agent.

What is PEG-5 undecyl ether used for?

It is used as a surface-active and wetting agent in cleaning systems, as an oil-in-water emulsifier for oil-containing formulations, and as a detergent component in cleaning blends.

What is the chemical formula and structure of PEG-5 undecyl ether?

It is an alcohol ethoxylate built from an undecyl (C11) alcohol with about 5 ethylene-oxide units; the ctx formula is listed as C13H28O2 for the base ether unit. CAS 34398-01-1, also known as undeceth-5.

What is the difference between PEG-5 undecyl ether and other alcohol ethoxylates?

It is distinguished by its C11 (undecyl) hydrophobe and the relatively low degree of ethoxylation (about 5 EO), which sets its HLB and wetting/detergency profile versus longer-chain or more highly ethoxylated alcohol ethoxylates. Refer to the technical data sheet for the supplied grade.

How is bulk PEG-5 undecyl ether supplied and priced?

RawSource supplies PEG-5 undecyl ether (CAS 34398-01-1, HS 3402.42) in bulk industrial packaging such as drums and totes, with CoA and SDS per lot. Request a quote with your target volume and ship-to location for current landed pricing.

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.