97039-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97039-18-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,3 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 97039-18:
(7*9)+(6*7)+(5*0)+(4*3)+(3*9)+(2*1)+(1*8)=154
154 % 10 = 4
So 97039-18-4 is a valid CAS Registry Number.