15869-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15869-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,8,6 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 15869-71:
(7*1)+(6*5)+(5*8)+(4*6)+(3*9)+(2*7)+(1*1)=143
143 % 10 = 3
So 15869-71-3 is a valid CAS Registry Number.