683228-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 683228-74-2 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, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 683228-74:
(8*6)+(7*8)+(6*3)+(5*2)+(4*2)+(3*8)+(2*7)+(1*4)=182
182 % 10 = 2
So 683228-74-2 is a valid CAS Registry Number.