61673-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61673-77-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,6,7 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 61673-77:
(7*6)+(6*1)+(5*6)+(4*7)+(3*3)+(2*7)+(1*7)=136
136 % 10 = 6
So 61673-77-6 is a valid CAS Registry Number.