80981-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80981-23-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,8 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 80981-23:
(7*8)+(6*0)+(5*9)+(4*8)+(3*1)+(2*2)+(1*3)=143
143 % 10 = 3
So 80981-23-3 is a valid CAS Registry Number.