300583-39-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 300583-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,0,5,8 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 300583-39:
(8*3)+(7*0)+(6*0)+(5*5)+(4*8)+(3*3)+(2*3)+(1*9)=105
105 % 10 = 5
So 300583-39-5 is a valid CAS Registry Number.