201228-87-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201228-87-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,2,2 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 201228-87:
(8*2)+(7*0)+(6*1)+(5*2)+(4*2)+(3*8)+(2*8)+(1*7)=87
87 % 10 = 7
So 201228-87-7 is a valid CAS Registry Number.