477252-61-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 477252-61-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,7,2,5 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 477252-61:
(8*4)+(7*7)+(6*7)+(5*2)+(4*5)+(3*2)+(2*6)+(1*1)=172
172 % 10 = 2
So 477252-61-2 is a valid CAS Registry Number.
477252-61-2Relevant articles and documents
METHOD OF PREPARING INHIBITORS OF PHOSPHODIESTERASE-4
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Page 48, (2010/02/07)
In one aspect, the present invention is directed to a one pot method of preparing intermediates of Formula V, which are useful in making inhibitors of phosphodiesterase-4: The present invention is also directed to a method of preparing phosphodiesterase inhibitors comprising the Formula