130563-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130563-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,5,6 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 130563-81:
(8*1)+(7*3)+(6*0)+(5*5)+(4*6)+(3*3)+(2*8)+(1*1)=104
104 % 10 = 4
So 130563-81-4 is a valid CAS Registry Number.