1240598-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240598-57-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,5,9 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1240598-57:
(9*1)+(8*2)+(7*4)+(6*0)+(5*5)+(4*9)+(3*8)+(2*5)+(1*7)=155
155 % 10 = 5
So 1240598-57-5 is a valid CAS Registry Number.