73982-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73982-69-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,9,8 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 73982-69:
(7*7)+(6*3)+(5*9)+(4*8)+(3*2)+(2*6)+(1*9)=171
171 % 10 = 1
So 73982-69-1 is a valid CAS Registry Number.