210102-19-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210102-19-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,1,0 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 210102-19:
(8*2)+(7*1)+(6*0)+(5*1)+(4*0)+(3*2)+(2*1)+(1*9)=45
45 % 10 = 5
So 210102-19-5 is a valid CAS Registry Number.