683228-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 683228-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,3,2,2 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 683228-53:
(8*6)+(7*8)+(6*3)+(5*2)+(4*2)+(3*8)+(2*5)+(1*3)=177
177 % 10 = 7
So 683228-53-7 is a valid CAS Registry Number.