32731-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 32731-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,7,3 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 32731-69:
(7*3)+(6*2)+(5*7)+(4*3)+(3*1)+(2*6)+(1*9)=104
104 % 10 = 4
So 32731-69-4 is a valid CAS Registry Number.