122009-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 122009-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,0,0 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 122009-56:
(8*1)+(7*2)+(6*2)+(5*0)+(4*0)+(3*9)+(2*5)+(1*6)=77
77 % 10 = 7
So 122009-56-7 is a valid CAS Registry Number.