1323159-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1323159-31-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,3,1,5 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1323159-31:
(9*1)+(8*3)+(7*2)+(6*3)+(5*1)+(4*5)+(3*9)+(2*3)+(1*1)=124
124 % 10 = 4
So 1323159-31-4 is a valid CAS Registry Number.