210101-08-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210101-08-9 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 1 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 210101-08:
(8*2)+(7*1)+(6*0)+(5*1)+(4*0)+(3*1)+(2*0)+(1*8)=39
39 % 10 = 9
So 210101-08-9 is a valid CAS Registry Number.