67973-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67973-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,9,7 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 67973-31:
(7*6)+(6*7)+(5*9)+(4*7)+(3*3)+(2*3)+(1*1)=173
173 % 10 = 3
So 67973-31-3 is a valid CAS Registry Number.