177273-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177273-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,2,7 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 177273-81:
(8*1)+(7*7)+(6*7)+(5*2)+(4*7)+(3*3)+(2*8)+(1*1)=163
163 % 10 = 3
So 177273-81-3 is a valid CAS Registry Number.