1240670-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240670-87-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,6,7 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1240670-87:
(9*1)+(8*2)+(7*4)+(6*0)+(5*6)+(4*7)+(3*0)+(2*8)+(1*7)=134
134 % 10 = 4
So 1240670-87-4 is a valid CAS Registry Number.