263869-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 263869-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,3,8,6 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 263869-31:
(8*2)+(7*6)+(6*3)+(5*8)+(4*6)+(3*9)+(2*3)+(1*1)=174
174 % 10 = 4
So 263869-31-4 is a valid CAS Registry Number.