81857-23-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81857-23-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,5 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81857-23:
(7*8)+(6*1)+(5*8)+(4*5)+(3*7)+(2*2)+(1*3)=150
150 % 10 = 0
So 81857-23-0 is a valid CAS Registry Number.