1072840-83-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1072840-83-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,7,2,8,4 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1072840-83:
(9*1)+(8*0)+(7*7)+(6*2)+(5*8)+(4*4)+(3*0)+(2*8)+(1*3)=145
145 % 10 = 5
So 1072840-83-5 is a valid CAS Registry Number.