130209-51-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130209-51-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,2,0 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 130209-51:
(8*1)+(7*3)+(6*0)+(5*2)+(4*0)+(3*9)+(2*5)+(1*1)=77
77 % 10 = 7
So 130209-51-7 is a valid CAS Registry Number.