21102-06-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21102-06-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,0 and 2 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21102-06:
(7*2)+(6*1)+(5*1)+(4*0)+(3*2)+(2*0)+(1*6)=37
37 % 10 = 7
So 21102-06-7 is a valid CAS Registry Number.