423734-02-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423734-02-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,3 and 4 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 423734-02:
(8*4)+(7*2)+(6*3)+(5*7)+(4*3)+(3*4)+(2*0)+(1*2)=125
125 % 10 = 5
So 423734-02-5 is a valid CAS Registry Number.