2111-52-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2111-52-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,1 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2111-52:
(6*2)+(5*1)+(4*1)+(3*1)+(2*5)+(1*2)=36
36 % 10 = 6
So 2111-52-6 is a valid CAS Registry Number.