811830-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 811830-47-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,1,8,3 and 0 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 811830-47:
(8*8)+(7*1)+(6*1)+(5*8)+(4*3)+(3*0)+(2*4)+(1*7)=144
144 % 10 = 4
So 811830-47-4 is a valid CAS Registry Number.