79023-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79023-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,0,2 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 79023-21:
(7*7)+(6*9)+(5*0)+(4*2)+(3*3)+(2*2)+(1*1)=125
125 % 10 = 5
So 79023-21-5 is a valid CAS Registry Number.