1646145-64-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1646145-64-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,6,1,4 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1646145-64:
(9*1)+(8*6)+(7*4)+(6*6)+(5*1)+(4*4)+(3*5)+(2*6)+(1*4)=173
173 % 10 = 3
So 1646145-64-3 is a valid CAS Registry Number.