77440-29-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77440-29-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,4 and 0 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77440-29:
(7*7)+(6*7)+(5*4)+(4*4)+(3*0)+(2*2)+(1*9)=140
140 % 10 = 0
So 77440-29-0 is a valid CAS Registry Number.