1029420-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1029420-40-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,9,4,2 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1029420-40:
(9*1)+(8*0)+(7*2)+(6*9)+(5*4)+(4*2)+(3*0)+(2*4)+(1*0)=113
113 % 10 = 3
So 1029420-40-3 is a valid CAS Registry Number.