81861-29-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81861-29-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,6 and 1 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81861-29:
(7*8)+(6*1)+(5*8)+(4*6)+(3*1)+(2*2)+(1*9)=142
142 % 10 = 2
So 81861-29-2 is a valid CAS Registry Number.