23869-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23869-16-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,8,6 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 23869-16:
(7*2)+(6*3)+(5*8)+(4*6)+(3*9)+(2*1)+(1*6)=131
131 % 10 = 1
So 23869-16-1 is a valid CAS Registry Number.