20757-62-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20757-62-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,5 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20757-62:
(7*2)+(6*0)+(5*7)+(4*5)+(3*7)+(2*6)+(1*2)=104
104 % 10 = 4
So 20757-62-4 is a valid CAS Registry Number.