1172120-23-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172120-23-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,1,2 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1172120-23:
(9*1)+(8*1)+(7*7)+(6*2)+(5*1)+(4*2)+(3*0)+(2*2)+(1*3)=98
98 % 10 = 8
So 1172120-23-8 is a valid CAS Registry Number.