20902-10-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20902-10-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,0 and 2 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20902-10:
(7*2)+(6*0)+(5*9)+(4*0)+(3*2)+(2*1)+(1*0)=67
67 % 10 = 7
So 20902-10-7 is a valid CAS Registry Number.