25912-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25912-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,9,1 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 25912-42:
(7*2)+(6*5)+(5*9)+(4*1)+(3*2)+(2*4)+(1*2)=109
109 % 10 = 9
So 25912-42-9 is a valid CAS Registry Number.