1240317-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240317-98-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,3,1 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1240317-98:
(9*1)+(8*2)+(7*4)+(6*0)+(5*3)+(4*1)+(3*7)+(2*9)+(1*8)=119
119 % 10 = 9
So 1240317-98-9 is a valid CAS Registry Number.