1174918-31-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1174918-31-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,9,1 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1174918-31:
(9*1)+(8*1)+(7*7)+(6*4)+(5*9)+(4*1)+(3*8)+(2*3)+(1*1)=170
170 % 10 = 0
So 1174918-31-0 is a valid CAS Registry Number.
1174918-31-0Relevant articles and documents
AN IMPROVED PROCESS FOR THE PREPARATION OF BOSENTAN
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, (2011/04/14)
The present application provides purification of Bosentan crude by making its crystalline potassium salt, which is further converted to Bosentan (I) with bis-sulfonamide (VIII) and deshydroxyethyl (IX) impurities to less than 0.2% by HPLC analysis.