201138-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201138-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,1,3 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 201138-64:
(8*2)+(7*0)+(6*1)+(5*1)+(4*3)+(3*8)+(2*6)+(1*4)=79
79 % 10 = 9
So 201138-64-9 is a valid CAS Registry Number.