39580-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39580-05-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,5,8 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 39580-05:
(7*3)+(6*9)+(5*5)+(4*8)+(3*0)+(2*0)+(1*5)=137
137 % 10 = 7
So 39580-05-7 is a valid CAS Registry Number.