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HELM is represented with branches and sales offices in more than 30 countries.

Also known under the product name:

  • Butanediol
  • 1.4 Butanediol

CAS-Nr.: 110-63-4
EINECS-Nr.: 203-786-5



Butanediol (BDO) is a liquid chemical used mainly in the manufacture of fibres for sports clothing and polymers for the automotive industry.

Oliver Leptien

Executive Manager

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Butanediol is a diol of n-butane. It is produced either from acetylene and formaldehyde (Reppe process), butadiene, propylene oxide or maleic anhydride (Davy process).

Examples of applications

Butanediol is used predominantly in the fibre industry and it also finds application in the automotive industry and in the construction sector. It mainly plays a role in the production of tetrahydrofuran, a precursor for polytetramethylene ether glycol (PTMEG). BDO is also used in the production of plastics (TPU, COPE, PBT) and gamma-butyrolactone (GBL).


  • Bulk in road tank cars
  • Bulk in iso tank containers
  • In drums or ibc

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