201855-53-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201855-53-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,5 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 201855-53:
(8*2)+(7*0)+(6*1)+(5*8)+(4*5)+(3*5)+(2*5)+(1*3)=110
110 % 10 = 0
So 201855-53-0 is a valid CAS Registry Number.