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  • Product Name: 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU)
  • Other Names: DBU
  • Cas No.: 6674-22-2
  • Purity: 99%
  • MF: C9H16N2
  • Appearance: Colorless transparent liquid
  • Package: Drum
  • Certificate: ISO
  • Application: Widely used in medicine, pesticides, chemical industry, also used as epoxy resin curing agent, polyurethane catalyst.
  • Sample: Available

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Product Detail

1,8-Diazabicyclo[5.4.0]undec-7-ene(DBU), is a very alkaline compound. It has a heterocyclic ring of two nitrogen atoms, one of which has an unsaturated double bond on one carbon atom. DBU is often used as alkynylation agent, ligand and catalyst in organic synthesis.

Product Parameter

Synonyms DBU
Chemical Formula C9H16N2 CAS Number 6674-22-2
Molar mass 152.24 UN number 3267
Appearance Colorless transparent liquid
Odor Slight smell
Density 1.05
Melting point -70°C
Boiling point 261°C
Refractive index 1.5209
Flash point >110°C
Quality standard Content ≥99%; Moisture ≤0.2%
Package 200kg/barrel (galvanized drum or plastic drum) ; 25kg/barrel (plastic drum)



1. Base catalyst in acid-catalyzed reactions: 1,8-Diazabicyclo[5.4.0]undec-7-ene(DBU) can catalyze acid-catalyzed reactions under acidic conditions, such as nucleophilic addition to ketone, isomerization of ketone aldol, etc. It can be neutralized with acid to produce a salt form while promoting the reaction of organic matter.

2. Oxidation catalyst: 1,8-Diazabicyclo[5.4.0]undec-7-ene(DBU) can be used as a base catalyst in the oxidation reaction, participating in the reaction of oxygen and organic matter, such as oxidative dehydrogenation reaction, ammonia oxidation reaction, etc.

3. Carboxylic acid activation catalyst: 1,8-Diazabicyclo[5.4.0]undec-7-ene(DBU) can catalyze the reaction of carboxylic acid with other compounds to form esters, amides or anhydrides.

4. Condensation reaction catalyst: chemical 1,8-Diazabicyclo[5.4.0]undec-7-ene(DBU) can catalyze the condensation reaction between molecules to form new chemical bonds, such as Aldol condensation reaction and Knoevenagel condensation reaction.

5. Dehydration reaction catalyst: DBU can catalyze the ester dehydration reaction, convert the ester into ether or acid, and generate the corresponding DBU salt.

Multiple uses of products

It use in Chemical Manufacturing,Pharmaceutical Industry,Chemical Research and Development,Rubber and Plastics Modification