53202-49-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53202-49-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,2,0 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 53202-49:
(7*5)+(6*3)+(5*2)+(4*0)+(3*2)+(2*4)+(1*9)=86
86 % 10 = 6
So 53202-49-6 is a valid CAS Registry Number.
53202-49-6Relevant articles and documents
Addition of Aldehydes to Activated Double Bonds, XXIII Syntheses of 1,3,6-Triketones
Stetter, Hermann,Nienhaus, Juergen
, p. 979 - 988 (2007/10/02)
Thiazolium salt-catalyzed addition of aldehydes to monoacetals of vinyl-1,3-diketones (1, 2; 23, 24) leads to 1,4-diketones (3-10; 25-31), which are hydrolyzed to 1,3,6-triketones (11-18; 32-38).A way to the mono-acetalized vinyl-1,3-diketones 1, 2; 23, 2
