987-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 987-69-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,8 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 987-69:
(5*9)+(4*8)+(3*7)+(2*6)+(1*9)=119
119 % 10 = 9
So 987-69-9 is a valid CAS Registry Number.