39901-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39901-30-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,9,0 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 39901-30:
(7*3)+(6*9)+(5*9)+(4*0)+(3*1)+(2*3)+(1*0)=129
129 % 10 = 9
So 39901-30-9 is a valid CAS Registry Number.