1561023-51-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1561023-51-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,6,1,0,2 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1561023-51:
(9*1)+(8*5)+(7*6)+(6*1)+(5*0)+(4*2)+(3*3)+(2*5)+(1*1)=125
125 % 10 = 5
So 1561023-51-5 is a valid CAS Registry Number.