389806-47-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 389806-47-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,9,8,0 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 389806-47:
(8*3)+(7*8)+(6*9)+(5*8)+(4*0)+(3*6)+(2*4)+(1*7)=207
207 % 10 = 7
So 389806-47-7 is a valid CAS Registry Number.