1609581-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609581-05-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,5,8 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1609581-05:
(9*1)+(8*6)+(7*0)+(6*9)+(5*5)+(4*8)+(3*1)+(2*0)+(1*5)=176
176 % 10 = 6
So 1609581-05-6 is a valid CAS Registry Number.