1402820-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1402820-16-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,8,2 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1402820-16:
(9*1)+(8*4)+(7*0)+(6*2)+(5*8)+(4*2)+(3*0)+(2*1)+(1*6)=109
109 % 10 = 9
So 1402820-16-9 is a valid CAS Registry Number.