72426-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72426-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,4,2 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 72426-18:
(7*7)+(6*2)+(5*4)+(4*2)+(3*6)+(2*1)+(1*8)=117
117 % 10 = 7
So 72426-18-7 is a valid CAS Registry Number.