677344-61-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 677344-61-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,7,3,4 and 4 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 677344-61:
(8*6)+(7*7)+(6*7)+(5*3)+(4*4)+(3*4)+(2*6)+(1*1)=195
195 % 10 = 5
So 677344-61-5 is a valid CAS Registry Number.