D

Diethylene glycol

IUPAC: 2-(2-hydroxyethoxy)ethanol

C4H10O3 Organic Compounds CAS 111-46-6
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Quick Reference
Formula / NotationC4H10O3
CAS Number111-46-6
Molecular Weight106.12
Melting Point14 °F (NTP, 1992)
Boiling Point473 °F at 760 mmHg (NTP, 1992)
Density1.118 at 68 °F (USCG, 1999) - Denser than water; will sink
Solubilitygreater than or equal to 100 mg/mL at 68 °F (NTP, 1992)
AppearanceDiethylene glycol appears as a colorless liquid. Denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.
Also Known As2-(2-hydroxyethoxy)ethanol; 111-46-6; 2,2'-Oxydiethanol; 2-(2-Hydroxyethoxy)ethanol; 2,2'-Oxybisethanol; Diglycol; Diethylenglykol; Digol; Bis(2-hydroxyethyl) ether; 2-Hydroxyethyl ether
CategoryOrganic Compounds

What is Diethylene glycol?

Diethylene glycol (C4H10O3) is an organic compound that appears as Diethylene glycol appears as a colorless liquid. Denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.. It has a molecular weight of 106.12 g/mol. Its IUPAC name is 2-(2-hydroxyethoxy)ethanol. Boiling point: 473 °F at 760 mmHg (NTP, 1992). Melting point: 14 °F (NTP, 1992).

Formula & Notation

C4H10O3

IUPAC Name: 2-(2-hydroxyethoxy)ethanol

Other Names / Synonyms: 2-(2-hydroxyethoxy)ethanol; 111-46-6; 2,2'-Oxydiethanol; 2-(2-Hydroxyethoxy)ethanol; 2,2'-Oxybisethanol; Diglycol; Diethylenglykol; Digol; Bis(2-hydroxyethyl) ether; 2-Hydroxyethyl ether

Properties & Characteristics

Appearance: Diethylene glycol appears as a colorless liquid. Denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.. Molecular formula: C4H10O3. Molecular weight: 106.12 g/mol. Boiling point: 473 °F at 760 mmHg (NTP, 1992). Melting point: 14 °F (NTP, 1992). Density: 1.118 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: greater than or equal to 100 mg/mL at 68 °F (NTP, 1992). Vapor pressure: less than 0.01 mmHg at 68 °F ; 0.01 mmHg at 86 °F (NTP, 1992). LogP: -1.3.

Physical Data

PropertyValue
Melting Point14 °F (NTP, 1992)
Boiling Point473 °F at 760 mmHg (NTP, 1992)
Density1.118 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight106.12
Solubilitygreater than or equal to 100 mg/mL at 68 °F (NTP, 1992)
AppearanceDiethylene glycol appears as a colorless liquid. Denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Diethylene glycol
Formula C4H10O3
CAS Number 111-46-6
Molecular Weight 106.12
Synonyms 2-(2-hydroxyethoxy)ethanol; 111-46-6; 2,2'-Oxydiethanol; 2-(2-Hydroxyethoxy)ethanol; 2,2'-Oxybisethanol; Diglycol; Diethylenglykol; Digol; Bis(2-hydroxyethyl) ether; 2-Hydroxyethyl ether

Frequently Asked Questions

Diethylene glycol (C4H10O3) is an organic compound that appears as Diethylene glycol appears as a colorless liquid. Denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.. It has a molecular weight of 106.12 g/mol. Its IUPAC name is 2-(2-hydroxyethoxy)ethanol. Boiling point: 473 °F at 760 mmHg (NTP, 1992). Melting point: 14 °F (NTP, 1992).

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.