1609281-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609281-45-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,2,8 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1609281-45:
(9*1)+(8*6)+(7*0)+(6*9)+(5*2)+(4*8)+(3*1)+(2*4)+(1*5)=169
169 % 10 = 9
So 1609281-45-9 is a valid CAS Registry Number.