76819-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76819-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,8,1 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 76819-31:
(7*7)+(6*6)+(5*8)+(4*1)+(3*9)+(2*3)+(1*1)=163
163 % 10 = 3
So 76819-31-3 is a valid CAS Registry Number.