201050-52-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201050-52-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,0,5 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 201050-52:
(8*2)+(7*0)+(6*1)+(5*0)+(4*5)+(3*0)+(2*5)+(1*2)=54
54 % 10 = 4
So 201050-52-4 is a valid CAS Registry Number.