684215-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 684215-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,4,2,1 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 684215-49:
(8*6)+(7*8)+(6*4)+(5*2)+(4*1)+(3*5)+(2*4)+(1*9)=174
174 % 10 = 4
So 684215-49-4 is a valid CAS Registry Number.
684215-49-4Relevant articles and documents
PROCESS FOR THE PREPARATION OF 17-N-SUBSTITUTED-CARBAMOYL-4-AZA-ANDROST-1 -EN-3-ONES
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Page/Page column 14-15, (2008/12/08)
The present invention relates to a process for producing 17-N-substituted-carbamoyl-4-aza-androst-1-en-3-ones of formula (1) , including Finasteride and Dutasteride.