397847-83-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 397847-83-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,7,8,4 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 397847-83:
(8*3)+(7*9)+(6*7)+(5*8)+(4*4)+(3*7)+(2*8)+(1*3)=225
225 % 10 = 5
So 397847-83-5 is a valid CAS Registry Number.