3239-04-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3239-04-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,3 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3239-04:
(6*3)+(5*2)+(4*3)+(3*9)+(2*0)+(1*4)=71
71 % 10 = 1
So 3239-04-1 is a valid CAS Registry Number.