1454798-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1454798-33-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,5,4,7,9 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1454798-33:
(9*1)+(8*4)+(7*5)+(6*4)+(5*7)+(4*9)+(3*8)+(2*3)+(1*3)=204
204 % 10 = 4
So 1454798-33-4 is a valid CAS Registry Number.
1454798-33-4Relevant articles and documents
PROCESS FOR PREPARATION OF ROFLUMILAST
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Paragraph 0046, (2013/09/26)
The present invention provides novel processes for the preparation of N-substituted benzamides having the formula (VIc). In some embodiments, the invention provides a process for preparation of roflumilast and other pharmaceutically active species. Novel compounds, including intermediates for the synthesis of roflumilast, are also provided.
