256945-23-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256945-23-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,9,4 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 256945-23:
(8*2)+(7*5)+(6*6)+(5*9)+(4*4)+(3*5)+(2*2)+(1*3)=170
170 % 10 = 0
So 256945-23-0 is a valid CAS Registry Number.