69831-76-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69831-76-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,8,3 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 69831-76:
(7*6)+(6*9)+(5*8)+(4*3)+(3*1)+(2*7)+(1*6)=171
171 % 10 = 1
So 69831-76-1 is a valid CAS Registry Number.