1172020-47-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172020-47-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,0,2 and 0 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1172020-47:
(9*1)+(8*1)+(7*7)+(6*2)+(5*0)+(4*2)+(3*0)+(2*4)+(1*7)=101
101 % 10 = 1
So 1172020-47-1 is a valid CAS Registry Number.