77242-14-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77242-14-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,4 and 2 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77242-14:
(7*7)+(6*7)+(5*2)+(4*4)+(3*2)+(2*1)+(1*4)=129
129 % 10 = 9
So 77242-14-9 is a valid CAS Registry Number.