553665-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 553665-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,3,6,6 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 553665-19:
(8*5)+(7*5)+(6*3)+(5*6)+(4*6)+(3*5)+(2*1)+(1*9)=173
173 % 10 = 3
So 553665-19-3 is a valid CAS Registry Number.