20625-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20625-42-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,2 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20625-42:
(7*2)+(6*0)+(5*6)+(4*2)+(3*5)+(2*4)+(1*2)=77
77 % 10 = 7
So 20625-42-7 is a valid CAS Registry Number.