83680-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83680-23-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,8 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83680-23:
(7*8)+(6*3)+(5*6)+(4*8)+(3*0)+(2*2)+(1*3)=143
143 % 10 = 3
So 83680-23-3 is a valid CAS Registry Number.