20937-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20937-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,3 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20937-68:
(7*2)+(6*0)+(5*9)+(4*3)+(3*7)+(2*6)+(1*8)=112
112 % 10 = 2
So 20937-68-2 is a valid CAS Registry Number.