20982-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20982-42-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,8 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20982-42:
(7*2)+(6*0)+(5*9)+(4*8)+(3*2)+(2*4)+(1*2)=107
107 % 10 = 7
So 20982-42-7 is a valid CAS Registry Number.