173778-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173778-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,7,7 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 173778-19:
(8*1)+(7*7)+(6*3)+(5*7)+(4*7)+(3*8)+(2*1)+(1*9)=173
173 % 10 = 3
So 173778-19-3 is a valid CAS Registry Number.