20788-64-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20788-64-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,8 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20788-64:
(7*2)+(6*0)+(5*7)+(4*8)+(3*8)+(2*6)+(1*4)=121
121 % 10 = 1
So 20788-64-1 is a valid CAS Registry Number.