25939-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25939-83-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,9,3 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 25939-83:
(7*2)+(6*5)+(5*9)+(4*3)+(3*9)+(2*8)+(1*3)=147
147 % 10 = 7
So 25939-83-7 is a valid CAS Registry Number.