7342-77-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7342-77-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,4 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 7342-77:
(6*7)+(5*3)+(4*4)+(3*2)+(2*7)+(1*7)=100
100 % 10 = 0
So 7342-77-0 is a valid CAS Registry Number.