73809-01-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73809-01-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,0 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73809-01:
(7*7)+(6*3)+(5*8)+(4*0)+(3*9)+(2*0)+(1*1)=135
135 % 10 = 5
So 73809-01-5 is a valid CAS Registry Number.