320407-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 320407-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,0,4,0 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 320407-71:
(8*3)+(7*2)+(6*0)+(5*4)+(4*0)+(3*7)+(2*7)+(1*1)=94
94 % 10 = 4
So 320407-71-4 is a valid CAS Registry Number.