20341-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20341-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,4 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20341-25:
(7*2)+(6*0)+(5*3)+(4*4)+(3*1)+(2*2)+(1*5)=57
57 % 10 = 7
So 20341-25-7 is a valid CAS Registry Number.