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Triethylene Glycol (TEG)

TEG
CAS 112-27-6 · Formula C6H14O4 · MW 150.17 g/mol

A hygroscopic ether-diol used as a humectant, solvent for resins and dyes in textile processing, and plasticizer in polymer systems.

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HS Code
2909.49
At a Glance
Material Family
Glycols & Polyols
Record Type
Pure compound
Primary Role
Viscosity Modification · Moisture Control
Solubility
≥ 100 mg/mL at 20 °C
Functional Roles
Viscosity Modification Moisture Control Solvency Plasticizing Synthesis Intermediate
INCI Name
TRIETHYLENE GLYCOL
CosIng Functions
FRAGRANCEPERFUMINGVISCOSITY CONTROLLING
Industries Served
Beauty & Personal Care Oil & Gas
Applications & Use Cases
  • ▸ Humectant: Moisture-control agent in printing inks and other products
  • ▸ Solvents: Solvent for resins, dyes, and textile dyeing/finishing
  • ▸ Plasticizer: Plasticizer in formulated polymer systems
  • ▸ Air sanitation: Used in air-treatment and sanitizing formulations
Physical Properties
Melting Point
-4 °C
Boiling Point
285 °C at 760 mmHg
Density
1.125 at 20 °C
Solubility
≥ 100 mg/mL at 20 °C
Vapor Pressure
< 0.001 mmHg at 20 °C; 1 mmHg at 114 °C
Flash Point
166 °C
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
2909 . 49
Chapter 29
Organic chemicals
Heading 29.09
Internationally harmonized (WCO HS)
Subheading 2909.49
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
112-27-6
Molecular Formula
C6H14O4
Molecular Weight
150.17 g/mol
IUPAC Name
2-[2-(2-hydroxyethoxy)ethoxy]ethanol
INCI Name
TRIETHYLENE GLYCOL
PubChem CID
8172
InChI Key
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
Synonyms & Trade Names
TRIETHYLENE GLYCOL Triglycol 2,2'-(Ethane-1,2-diylbis(oxy))diethanol 2,2'-Ethylenedioxydiethanol Trigen 2-[2-(2-Hydroxyethoxy)ethoxy]ethanol Triethylenglykol Triethyleneglycol 1,2-Bis(2-hydroxyethoxy)ethane 2,2'-Ethylenedioxybis(ethanol) 3,6-Dioxaoctane-1,8-diol 2,2'-(Ethylenedioxy)diethanol 2,2'-Ethylenedioxyethanol Di-beta-hydroxyethoxyethane Glycol bis(hydroxyethyl) ether TEG Trigol 2,2'-[ethane-1,2-diylbis(oxy)]diethanol Ethanol, 2,2'-[1,2-ethanediylbis(oxy)]bis- Ethylene glycol dihydroxydiethyl ether
Full Description

Triethylene glycol (CAS 112-27-6, C6H14O4) is a hygroscopic ether-diol. It is used as a humectant, a solvent for resins, dyes, and textile processing, a plasticizer, and as a disinfectant/air-sanitizing agent.

Regulatory & registration requirements

  • TSCA (US):
  • REACH (EU):
  • EC number: 203-953-2

Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12

Solutions Using This Product

Process-solution guides on this site that specify this chemistry:

Frequently Asked Questions

What is triethylene glycol used for?

Triethylene glycol (TEG, CAS 112-27-6, C6H14O4) is a hygroscopic ether-diol used as a humectant and moisture-control agent, a solvent for resins and dyes and in textile dyeing and finishing, a plasticizer in polymer systems, and in air-treatment and sanitizing formulations.

What is another name for triethylene glycol?

Triethylene glycol is commonly abbreviated TEG. It is the ether-diol with three ethylene-glycol units (formula C6H14O4, CAS 112-27-6), distinct from ethylene glycol and diethylene glycol.

What is triethylene glycol made from?

TEG is an oligomer in the ethylene-glycol series, consisting of three ethylene-glycol units joined by ether linkages. It is produced industrially alongside ethylene glycol and diethylene glycol from ethylene oxide.

Is triethylene glycol an alcohol?

TEG is an ether-diol, meaning it has two terminal hydroxyl (alcohol) groups linked through ether oxygens. Those hydroxyl groups give it the hygroscopic, humectant behavior used in many formulations.

How do I get bulk pricing for triethylene glycol?

RawSource supplies triethylene glycol (CAS 112-27-6, HS 2909.49) in drums, totes, and IBCs. We do not publish fixed prices; request a bulk quote for your volume, and we will include the SDS and CoA.

What is the REACH and TSCA regulatory status of Triethylene Glycol (TEG)?

Triethylene Glycol (TEG) (CAS 112-27-6) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 203-953-2).

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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.
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