Description
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) has a variety of applications.  DDQ is a deprotection agent for ketals, acetals, and thioacetals.  It is a useful electron transfer reagent for synthesis of quinolones and an oxidizing agent used to synthesize steroids.  Additionally, DDQ is used with Ph3P to synthesize 1,2-benzisoxazoles. 
 Product Specifications
4,5-Dichloro-3,6-dioxo-1,4-cyclohexadiene-1,2-dicarbonitrile, DDQ
 
Formula: C8Cl2N2O2 
MW: 227.01 g/mol
 
RTECS: GU 4825000
 
EINECS: 201-542-2 
 
R-Phrases: R25,R29
 
Beilstein: 747939 
 
S-Phrases: S22,S24/25,S37,S45 
MDL: MFCD00001593 
 
Merck Index: 13, 3088 
 
UN 3439