423730-97-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423730-97-6 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 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 423730-97:
(8*4)+(7*2)+(6*3)+(5*7)+(4*3)+(3*0)+(2*9)+(1*7)=136
136 % 10 = 6
So 423730-97-6 is a valid CAS Registry Number.