3912-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3912-30-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,1 and 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3912-30:
(6*3)+(5*9)+(4*1)+(3*2)+(2*3)+(1*0)=79
79 % 10 = 9
So 3912-30-9 is a valid CAS Registry Number.