128683-22-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128683-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,8 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128683-22:
(8*1)+(7*2)+(6*8)+(5*6)+(4*8)+(3*3)+(2*2)+(1*2)=147
147 % 10 = 7
So 128683-22-7 is a valid CAS Registry Number.