211100-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211100-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,1,0 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 211100-53:
(8*2)+(7*1)+(6*1)+(5*1)+(4*0)+(3*0)+(2*5)+(1*3)=47
47 % 10 = 7
So 211100-53-7 is a valid CAS Registry Number.