1562409-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1562409-21-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,6,2,4,0 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1562409-21:
(9*1)+(8*5)+(7*6)+(6*2)+(5*4)+(4*0)+(3*9)+(2*2)+(1*1)=155
155 % 10 = 5
So 1562409-21-5 is a valid CAS Registry Number.