The 2-Chlor-4-hydroxybenzaldehyde, also known as Benzaldehyde, 2-chloro-4-hydroxy-, is an organic compound with the formula C₇H₅ClO₂. With the CAS registry number 54439-75-7, its systematic name is 2-chloro-4-hydroxybenzaldehyde.

Physical properties of 2-Chlor-4-hydroxybenzaldehyde: (1)ACD/LogP: 2.41; (2)ACD/LogD (pH 5.5): 2.38; (3)ACD/LogD (pH 7.4): 1.72; (4)ACD/BCF (pH 5.5): 37.74; (5)ACD/BCF (pH 7.4): 8.17; (6)ACD/KOC (pH 5.5): 461.82; (7)ACD/KOC (pH 7.4): 99.93; (8)#H bond acceptors: 2; (9)#H bond donors: 1; (10)#Freely Rotating Bonds: 2; (11)Index of Refraction: 1.632; (12)Molar Refractivity: 39.78 cm³; (13)Molar Volume: 111.4 cm³; (14)Surface Tension: 54.7 dyne/cm; (15)Density: 1.404 g/cm³; (16)Flash Point: 118.6 °C; (17)Enthalpy of Vaporization: 53.13 kJ/mol; (18)Boiling Point: 272.5 °C at 760 mmHg; (19)Vapour Pressure: 0.00363 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=Cc1ccc(O)cc1Cl
(2)InChI: InChI=1/C7H5ClO2/c8-7-3-6(10)2-1-5(7)4-9/h1-4,10H
(3)InChIKey: ZMOMCILMBYEGLD-UHFFFAOYAI