25570-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25570-91-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,7 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25570-91:
(7*2)+(6*5)+(5*5)+(4*7)+(3*0)+(2*9)+(1*1)=116
116 % 10 = 6
So 25570-91-6 is a valid CAS Registry Number.