1644185-86-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1644185-86-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,4,1,8 and 5 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1644185-86:
(9*1)+(8*6)+(7*4)+(6*4)+(5*1)+(4*8)+(3*5)+(2*8)+(1*6)=183
183 % 10 = 3
So 1644185-86-3 is a valid CAS Registry Number.