from Wikipedia, the free encyclopedia
Structural formula
Structural formula of glutaraldehyde
Surname Glutaraldehyde
other names
  • Glutaraldehyde
  • 1,5-pentanedial
  • Glutaral
Molecular formula C 5 H 8 O 2
Brief description

colorless, pungent smelling liquid

External identifiers / databases
CAS number 111-30-8
EC number 203-856-5
ECHA InfoCard 100.003.506
PubChem 3485
DrugBank DB03266
Wikidata Q416475
Molar mass 100.12 g mol −1
Physical state



1.05 g cm −3 (20 ° C)

Melting point

−14 ° C

boiling point

187–189 ° C (decomposition)

Vapor pressure

2.3 k Pa (20 ° C)


miscible with water

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
06 - Toxic or very toxic 05 - Corrosive 08 - Dangerous to health 09 - Dangerous for the environment


H and P phrases H: 301-330-314-317-334-335-410
EUH: 071
P: 260-280-304 + 340-310-305 + 351 + 338-403 + 233

DFG / Switzerland: 0.05 ml m −3 or 0.21 mg m −3

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

Glutaraldehyde , systematically referred to as 1,5-pentanedial , is a colorless chemical compound that is liquid at room temperature and has a sharp, unpleasant odor. It consists of a chain of five carbon atoms with a total of eight hydrogen atoms . There are aldehyde functions at both ends . So glutaraldehyde is the dialdehyde of n -pentane . Due to its high reactivity, it is not commercially available as a pure substance, but only in the form of mostly aqueous solutions .


Glutaraldehyde appears as an intermediate in the industrial manufacturing process of some chemicals and is used directly:

safety instructions

Glutaraldehyde is toxic and causes serious eye, nose, throat, and lung irritation, including headache , drowsiness, and dizziness .

Ecological relevance

Glutaraldehyde is particularly toxic to aquatic organisms.

Since the beginning of 2008, plans by the Nord Stream consortium led by the energy company Gazprom have brought it into public awareness. Consideration is being given to cleaning the newly built Baltic Sea pipeline using an aqueous glutaraldehyde solution of an undisclosed concentration. The 2.3 million cubic meters of solution required for this are then to be pumped into the Baltic Sea . A paper by the German Ministry of the Environment suggests that the fauna and flora of the Baltic Sea are already heavily polluted by pollutants.

Web links

Individual evidence

  1. Entry on glutaraldehyde. In: Römpp Online . Georg Thieme Verlag, accessed on October 7, 2014.
  2. a b c d e f Entry on glutaraldehyde in the GESTIS substance database of the IFA , accessed on February 8, 2018(JavaScript required) .
  3. Rationale for Glutaral Occupational Exposure Limits in TRGS 900 , accessed on May 15, 2016.
  4. Entry on glutaral 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 .
  5. Data sheet Glutaraldehyde solution from Sigma-Aldrich , accessed on February 1, 2017 ( PDF ).
  6. Swiss Accident Insurance Fund (Suva): Limit values ​​- current MAK and BAT values (search for 111-30-8 or glutaraldehyde ), accessed on November 2, 2015.
  7. Pipeline: Gazprom wants to pump poison into the Baltic Sea. In: Spiegel Online . February 23, 2008, accessed December 19, 2019 .
  8. Answer of the Federal Government to the short question on the Baltic Sea pipeline (PDF; 80 kB) Cleaning of the planned Gazprom gas pipeline with glutaraldehyde.