9012-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 9012-39-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,1 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 9012-39:
(6*9)+(5*0)+(4*1)+(3*2)+(2*3)+(1*9)=79
79 % 10 = 9
So 9012-39-9 is a valid CAS Registry Number.