Butyl diglycol

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Structural formula
Structural formula of butyl diglycol
Surname Butyl diglycol
other names
  • 2- (2-butoxyethoxy) ethanol ( IUPAC )
  • Diethylene glycol monobutyl ether
  • Butoxy diethylene glycol
  • Butoxy diglycol
  • Diethylene glycol butyl ether
  • Butyl CARBITOL
  • BDG
Molecular formula C 8 H 18 O 3
Brief description

colorless and odorless liquid

External identifiers / databases
CAS number 112-34-5
EC number 203-961-6
ECHA InfoCard 100.003.601
PubChem 8177
ChemSpider 13839549
Wikidata Q1018210
Molar mass 162.23 g mol −1
Physical state



0.96 g cm −3 

Melting point

−68 ° C 

boiling point

231 ° C 


completely miscible with water 

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
07 - Warning


H and P phrases H: 319
P: 305 + 351 + 338

DFG / Switzerland: 10 ml m −3 or 67 mg m −3

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Butyl diglycol (systematic: 2- (2-butoxyethoxy) ethanol ) is a poorly volatile (i.e. high boiling point) clear liquid with a very faint odor. It is used as a solvent for paints and varnishes, in the chemical industry, in household cleaning agents, industrial chemicals and in textile processing. The substance also serves as a starting material for chemical syntheses .

It is made from n -butanol with ethylene oxide . In 2003, Dow Chemical produced 53,000 tons.


In 2014, Exxon announced that butyl diglycol, together with choline chloride, is the basis of its fracking liquid, which it claims to be environmentally friendly and the dosage used is harmless to humans .

Individual evidence

  1. a b c d e f g h Entry on diethylene glycol monobutyl ether in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
  2. Entry on 2- (2-butoxyethoxy) ethanol in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  3. Swiss Accident Insurance Fund (Suva): Limits - Current List of MAK and BAT Values (Search for 112-34-5 and diglycol ), accessed on November 2, 2015.
  4. Diethylene Glycol Butyl Ether (DOW) ,
  5. Focus, October 5, 2014

Web links