1177272-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1177272-31-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,7,2,7 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1177272-31:
(9*1)+(8*1)+(7*7)+(6*7)+(5*2)+(4*7)+(3*2)+(2*3)+(1*1)=159
159 % 10 = 9
So 1177272-31-9 is a valid CAS Registry Number.