1181977-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1181977-17-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,1,9,7 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1181977-17:
(9*1)+(8*1)+(7*8)+(6*1)+(5*9)+(4*7)+(3*7)+(2*1)+(1*7)=182
182 % 10 = 2
So 1181977-17-2 is a valid CAS Registry Number.