1177447-87-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1177447-87-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,7,4,4 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1177447-87:
(9*1)+(8*1)+(7*7)+(6*7)+(5*4)+(4*4)+(3*7)+(2*8)+(1*7)=188
188 % 10 = 8
So 1177447-87-8 is a valid CAS Registry Number.
1177447-87-8Relevant articles and documents
PROCESS FOR PREPARING BOSENTAN
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Page/Page column 16, (2009/10/09)
The present invention relates to a novel intermediate useful in the preparation of bosentan and to processes for the preparation of said intermediate and bosentan. The invention further relates to compositions comprising bosentan prepared according to the processes of the invention and their use in the treatment of endothelin-receptor mediated disorders.