57803-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57803-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,0 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 57803-45:
(7*5)+(6*7)+(5*8)+(4*0)+(3*3)+(2*4)+(1*5)=139
139 % 10 = 9
So 57803-45-9 is a valid CAS Registry Number.
InChI:InChI=1/C9H8Cl2N2O2/c10-7-3-6(4-8(11)12-7)9(14)13-1-2-15-5-13/h3-4H,1-2,5H2