1181653-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1181653-65-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,1,6,5 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1181653-65:
(9*1)+(8*1)+(7*8)+(6*1)+(5*6)+(4*5)+(3*3)+(2*6)+(1*5)=155
155 % 10 = 5
So 1181653-65-5 is a valid CAS Registry Number.