77218-46-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77218-46-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,1 and 8 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77218-46:
(7*7)+(6*7)+(5*2)+(4*1)+(3*8)+(2*4)+(1*6)=143
143 % 10 = 3
So 77218-46-3 is a valid CAS Registry Number.