DIETHYLENE GLYCOL Price Chart & Market Analysis 2026

DIETHYLENE GLYCOL Price Information Spec: China national standards;99.99%;99%｜polyester grade;99.9%;99%;99.5%;First-rate product;Polyester grade;99.9%｜first-grade product;≥99.9%｜Premium grade

Newest Price 913.13

Price Date 20261002

Day's Change -126.2

Day's Range 913.13 - 786.93

Month's Change +290.41

Month's Range 976.23 - 1,266.64

Year's Change +302.77

Year's Range 900.11 - 597.34

Opinions

Why is DEG priced weaker than MEG despite shared feedstock and tight port stocks?

The practical takeaway is that DEG rarely decouples from MEG. If you are procuring, do not build positions on DEG-specific bullish news alone. Track weekly port inventory and MEG basis first; a DEG rebound without MEG support tends to fade quickly. Keep purchases need-based until the complex turns.

What drives DEG demand and supply outside the polyester chain?

For buyers, the by-product nature of DEG is the real risk. You cannot rely on DEG producers ramping up just because DEG looks tight; their decision follows MEG. Build supplier relationships across both coal-based and ethylene-based routes so you have alternatives when one chain cuts runs.

How should buyers read DEG price signals when MEG futures swing sharply?

A useful discipline is to separate signal from noise. MEG spikes driven by shipping or geopolitics often retrace once transit normalizes, and DEG follows. If your DEG contract allows, stagger purchases across the month instead of buying into a single emotional peak.

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Overview

Diethylene glycol (DEG, 2,2'-oxydiethanol, CAS 111-46-6) is a colourless, odourless, hygroscopic viscous liquid with a sweet taste, miscible with water, alcohols, ethers, and acetone. It is produced as a co-product of ethylene oxide hydration and serves primarily as a solvent and intermediate.

Industrial: solvent for nitrocellulose, rubber, resins, oils, and paints; also used as a plasticiser, tobacco anti-drying agent, fibre lubricant, and natural gas drying agent.
Chemical intermediate: feedstock for unsaturated polyester resins, polyurethanes, and plasticisers.
Other: used in brake fluids and as a component in various specialty formulations.

China produces DEG mainly as a by-product of monoethylene glycol (MEG) plants, with output tied to the larger ethylene glycol industry. The market is generally balanced between domestic supply and imports, with prices influenced by feedstock costs and downstream demand. Capacity expansion in the ethylene glycol sector indirectly affects DEG availability.

Key domestic producers:
Sinopec – major producer via ethylene oxide hydration units.
PetroChina – co-producer of DEG at integrated refining and chemical sites.

Properties

Name

DIETHYLENE GLYCOL

2,2'-Dihydroxyethyl ether

2,2'-dihydroxyethylether

2,2'-oxybis-ethano

2,2'-oxydi-ethano

CAS Number

111-46-6

EINECS No.

203-872-2

Risk Codes

Safety Description

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DIETHYLENE GLYCOL Price Information Spec: China national standards;99.99%;99%｜polyester grade;99.9%;99%;99.5%;First-rate product;Polyester grade;99.9%｜first-grade product;≥99.9%｜Premium grade

Opinions

Why is DEG priced weaker than MEG despite shared feedstock and tight port stocks?

What drives DEG demand and supply outside the polyester chain?

How should buyers read DEG price signals when MEG futures swing sharply?

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