177844-93-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177844-93-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,8,4 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 177844-93:
(8*1)+(7*7)+(6*7)+(5*8)+(4*4)+(3*4)+(2*9)+(1*3)=188
188 % 10 = 8
So 177844-93-8 is a valid CAS Registry Number.