1161787-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1161787-89-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,1,7,8 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1161787-89:
(9*1)+(8*1)+(7*6)+(6*1)+(5*7)+(4*8)+(3*7)+(2*8)+(1*9)=178
178 % 10 = 8
So 1161787-89-8 is a valid CAS Registry Number.