423137-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423137-79-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,1,3 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 423137-79:
(8*4)+(7*2)+(6*3)+(5*1)+(4*3)+(3*7)+(2*7)+(1*9)=125
125 % 10 = 5
So 423137-79-5 is a valid CAS Registry Number.