693-34-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 693-34-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 693-34:
(5*6)+(4*9)+(3*3)+(2*3)+(1*4)=85
85 % 10 = 5
So 693-34-5 is a valid CAS Registry Number.