Super Strong BasesDBU®, DBN

DBU®and DBN are organic compounds of extremely strong basicity. They have excellent compatibility with various solvents and are useful as catalysts for many organic reactions. By using conventional tertiary amines or inorganic base catalysts, improvements in reaction yield and selectivity can be measured under more stable conditions. In addition, they can be used as catalysts in a variety of polymerizations or crosslinking reactions.

D B U®

※Please change according to the side.

Appearance Colorless – Pale Yellow Liquid
Principal Component 1,8-diazabicyclo [5.4.0] undecene-7
Structural Formula
Main Properties Molecular Weight 152
Boiling Point (℃)
240
pH(1%) 12.8 (Aqueous Solution) 
13.7 (IPA/Water 10/6)
pKa 12.5
Solubility Soluble in water (subject to gradual hydrolysis)
Soluble in many organic solvent
Usage (1) Promotes various organic synthesis reactions
· Dehydrohalogenation reactions
· Acid elimination reactions
· Condensation reactions and Wittig reactions
· Michael addition reactions
· Cycloaddition reactions, etc

(2) Promotes polymerization / crosslinking reactions(Mainly used as a salt)
· Polyurethane formation reactions
· Polyisocyanurate formation reactions
· Epoxy resin curing reactions
· Crosslinking reactions of halogen-containing polymers, etc.
Features This is the representative grade of organic super-strong bases, and is widely used as a catalyst for organic synthesis reactions or as a catalyst for polymerization and crosslinking reactions.
METI No. (5)1117
Packing Type Can 18kg, Drum 200kg
Fire Service Act(Japan)Hazardous Materials Classification Class Ⅳ petroleum No.3
Water Soluble

D B N

※Please change according to the side.

Appearance Colorless – Pale Yellow Liquid
Principal Component 1,5-diazabicyclo [4.3.0] nonene-5
Structural Formula
Main Properties Molecular Weight 124
Boiling Point (℃) 200
pH (1%) 12.9 (Aqueous Solution)
pKa 12.7
Solubility Soluble in water (subject to gradual hydrolysis)
Soluble in many organic solvent
Usage (1) Promotes various organic synthesis reactions
· Dehydrohalogenation reactions
· Acid elimination reactions
· Condensation reactions and Wittig reactions
· Michael addition reactions
· Cycloaddition reactions, etc.

  (2) Promotes polymerization / crosslinking reactions(Mainly used as a salt)
· Polyurethane formation reactions
· Polyisocyanurate formation reactions
· Epoxy resin curing reactions
· Crosslinking reactions of halogen-containing polymers, etc.
Features Like DBU, can be applied to a number of uses. A more powerful base than DBU, high catalyst activity and reaction selectivity can be expected.
METI No. (5)6217
Packing Type Can 18kg
Drum 200kg
Fire Service Act(Japan)Hazardous Materials Classification Class Ⅳ petroleum No.3
Water Soluble