208942-28-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208942-28-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,9,4 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 208942-28:
(8*2)+(7*0)+(6*8)+(5*9)+(4*4)+(3*2)+(2*2)+(1*8)=143
143 % 10 = 3
So 208942-28-3 is a valid CAS Registry Number.