1402238-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1402238-42-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,2,3 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1402238-42:
(9*1)+(8*4)+(7*0)+(6*2)+(5*2)+(4*3)+(3*8)+(2*4)+(1*2)=109
109 % 10 = 9
So 1402238-42-9 is a valid CAS Registry Number.