97228-33-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97228-33-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,2,2 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 97228-33:
(7*9)+(6*7)+(5*2)+(4*2)+(3*8)+(2*3)+(1*3)=156
156 % 10 = 6
So 97228-33-6 is a valid CAS Registry Number.
97228-33-6Relevant articles and documents
Preparation of Acetals of α-Epoxyketones and Their Chemoselective Hydrolysis Into α-Epoxyketones by Acidic Moist Silica Gel
Lescure, Pascal,Huet, Francois
, p. 404 - 406 (1987)
Sulfur ylides react with monoacetals of α-dicarbonyl compounds to give the expected epoxyacetals in satisfactory to figh yields.These lead to α-epoxyketones by chemoselective hydrolysis by acidic moist silica gel.
