Diethylene glycol

Diethylene glycol
Names
	IUPAC name 2,2′-Oxydiethanol
	Other names 2,2′-Oxybis(ethan-1-ol); 2-(2-Hydroxyethoxy)ethan-1-ol; Diethylene glycol; Ethylene diglycol; Diglycol; 2,2′-Oxybisethanol; 2,2′-Oxydiethanol; 3-Oxa-1,5-pentanediol; Dihydroxy diethyl ether; Digenos; Digol
Identifiers
CAS Number	111-46-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:46807 ;
ChemSpider	13835180 ;
ECHA InfoCard	100.003.521
KEGG	C14689 ;
PubChem CID	8117;
UNII	61BR964293 ;
CompTox Dashboard (EPA)	DTXSID8020462 ;
	InChI InChI=1S/C4H10O3/c5-1-3-7-4-2-6/h5-6H,1-4H2 Key: MTHSVFCYNBDYFN-UHFFFAOYSA-N ; InChI=1/C4H10O3/c5-1-3-7-4-2-6/h5-6H,1-4H2 Key: MTHSVFCYNBDYFN-UHFFFAOYAK;
	SMILES OCCOCCO;
Properties
Chemical formula	C4H10O3
Molar mass	106.12 g/mol
Appearance	Colorless liquid
Density	1.118 g/mL
Melting point	−10.45 °C (13.19 °F; 262.70 K)
Boiling point	244 to 245 °C (471 to 473 °F; 517 to 518 K)
Solubility in water	miscible
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Flammable, mildly toxic
	GHS labelling:
Pictograms
NFPA 704 (fire diamond)	2 1 0
Flash point	Combustible
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	2 — 25 g/kg (orally, rats)
Related compounds
Related diols	ethylene glycol, triethylene glycol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Diethylene glycol (DEG) is an organic compound with the formula (HOCH₂CH₂)₂O. It is a colorless, practically odorless, and hygroscopic liquid with a sweetish taste. It is a four carbon dimer of ethylene glycol. It is miscible in water, alcohol, ether, acetone, and ethylene glycol. DEG is a widely used solvent. It can be a normal ingredient in various consumer products, and it can be a contaminant. DEG has also been misused to sweeten wine and beer, and to viscosify oral and topical pharmaceutical products. Its use has resulted in many epidemics of poisoning since the early 20th century.

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