423118-26-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423118-26-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,1,1 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 423118-26:
(8*4)+(7*2)+(6*3)+(5*1)+(4*1)+(3*8)+(2*2)+(1*6)=107
107 % 10 = 7
So 423118-26-7 is a valid CAS Registry Number.