77415-42-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77415-42-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,1 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77415-42:
(7*7)+(6*7)+(5*4)+(4*1)+(3*5)+(2*4)+(1*2)=140
140 % 10 = 0
So 77415-42-0 is a valid CAS Registry Number.