261509-54-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 261509-54-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,1,5,0 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 261509-54:
(8*2)+(7*6)+(6*1)+(5*5)+(4*0)+(3*9)+(2*5)+(1*4)=130
130 % 10 = 0
So 261509-54-0 is a valid CAS Registry Number.