The Benzaldehyde,4-ethoxy-2-hydroxy- with CAS registry number of 43057-77-8 is also known as 2-Hydroxy-4-ethoxybenzaldehyde. The IUPAC name is 4-ethoxy-2-hydroxybenzaldehyde. In addition, the formula is C₉H₁₀O₃ and the molecular weight is 166.17.

Physical properties about Benzaldehyde,4-ethoxy-2-hydroxy- are: (1)ACD/LogP: 2.32; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 3; (4)#H bond donors: 1; (5)#Freely Rotating Bonds: 4; (6)Polar Surface Area: 35.53 Ų; (7)Index of Refraction: 1.573; (8)Molar Refractivity: 46.19 cm³; (9)Molar Volume: 140 cm³; (10)Polarizability: 18.31×10^-24 cm³; (11)Surface Tension: 45.5 dyne/cm; (12)Density: 1.186 g/cm³; (13)Flash Point: 114.1 °C; (14)Enthalpy of Vaporization: 54.51 kJ/mol; (15)Boiling Point: 285 °C at 760 mmHg; (16)Vapour Pressure: 0.00167 mmHg at 25 °C.

Preparation of Benzaldehyde,4-ethoxy-2-hydroxy-: it is prepared by reaction of iodoethane with 2,4-dihydroxy-benzaldehyde. The reaction needs reagent KOH and solvent ethanol at the temperature of 60 for 1 hour. The yield is about 47%.

Uses of Benzaldehyde,4-ethoxy-2-hydroxy-: it is used to produce 5-ethoxy-2-[(4-pentyl-phenylimino)-methyl]-phenol by reaction with 4-pentyl-aniline. The reaction occurs with solvent ethanol and other condition of heating for 2.5 hours. The yield is about 51%.

You can still convert the following datas into molecular structure:
(1)SMILES: O=Cc1ccc(OCC)cc1O
(2)InChI: InChI=1/C9H10O3/c1-2-12-8-4-3-7(6-10)9(11)5-8/h3-6,11H,2H2,1H3
(3)InChIKey: YQHAGJMEOJLAJT-UHFFFAOYAX