The systematic name of 2(1H)-Pyridinone, 4-chloro-5-nitro- is 4-chloro-5-nitro-pyridin-2-ol. With the CAS registry number 850663-54-6, it is also named as 4-Chloro-5-nitro-2-hydroxypyridine. In addition, its molecular formula is C₅H₃ClN₂O₃ and its molecular weight is 174.5419.

The other characteristics of 2(1H)-Pyridinone, 4-chloro-5-nitro- can be summarized as: (1)ACD/LogP: 0.11; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 5; (4)#H bond donors: 1; (5)#Freely Rotating Bonds: 1; (6)Polar Surface Area: 78.94 Å²; (7)Index of Refraction: 1.637; (8)Molar Refractivity: 37.66 cm³; (9)Molar Volume: 104.8 cm³; (10)Polarizability: 14.93×10^-24cm³; (11)Surface Tension: 74.1 dyne/cm; (12)Density: 1.664 g/cm³; (13)Flash Point: 214.4 °C; (14)Enthalpy of Vaporization: 71.3 kJ/mol; (15)Boiling Point: 430.9 °C at 760 mmHg; (16)Vapour Pressure: 4.97E-08 mmHg at 25 °C.

People can use the following data to convert to the molecule structure.
(1)SMILES: c1c(c(cnc1O)[N+](=O)[O-])Cl
(2)InChI: InChI=1/C5H3ClN2O3/c6-3-1-5(9)7-2-4(3)8(10)11/h1-2H,(H,7,9)
(3)InChIKey: VZBXTOUZMQUTIQ-UHFFFAOYAW
(4)Std. InChI: InChI=1S/C5H3ClN2O3/c6-3-1-5(9)7-2-4(3)8(10)11/h1-2H,(H,7,9)
(5)Std. InChIKey: VZBXTOUZMQUTIQ-UHFFFAOYSA-N