4392-12-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4392-12-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,9 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4392-12:
(6*4)+(5*3)+(4*9)+(3*2)+(2*1)+(1*2)=85
85 % 10 = 5
So 4392-12-5 is a valid CAS Registry Number.