1323421-97-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1323421-97-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,3,4,2 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1323421-97:
(9*1)+(8*3)+(7*2)+(6*3)+(5*4)+(4*2)+(3*1)+(2*9)+(1*7)=121
121 % 10 = 1
So 1323421-97-1 is a valid CAS Registry Number.