21062-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21062-83-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,6 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21062-83:
(7*2)+(6*1)+(5*0)+(4*6)+(3*2)+(2*8)+(1*3)=69
69 % 10 = 9
So 21062-83-9 is a valid CAS Registry Number.