1240256-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240256-77-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,2,5 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1240256-77:
(9*1)+(8*2)+(7*4)+(6*0)+(5*2)+(4*5)+(3*6)+(2*7)+(1*7)=122
122 % 10 = 2
So 1240256-77-2 is a valid CAS Registry Number.