81-47-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81-47-0 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81-47:
(4*8)+(3*1)+(2*4)+(1*7)=50
50 % 10 = 0
So 81-47-0 is a valid CAS Registry Number.