81018-46-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81018-46-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,1 and 8 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81018-46:
(7*8)+(6*1)+(5*0)+(4*1)+(3*8)+(2*4)+(1*6)=104
104 % 10 = 4
So 81018-46-4 is a valid CAS Registry Number.