71426-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71426-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,4,2 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71426-56:
(7*7)+(6*1)+(5*4)+(4*2)+(3*6)+(2*5)+(1*6)=117
117 % 10 = 7
So 71426-56-7 is a valid CAS Registry Number.