The CAS registry number of 3-Hydroxyindole is 480-93-3. The IUPAC name is 1H-indol-3-ol. In addition, it is a kind of green shiny needles with the molecular formula C₈H₇NO. Moreover, it should be stored in sealed container, and put in a cool and dry place.

Physical properties about this chemical are: (1)ACD/LogP: 1.41; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.41; (4)ACD/LogD (pH 7.4): 1.41; (5)ACD/BCF (pH 5.5): 6.9; (6)ACD/BCF (pH 7.4): 6.9; (7)ACD/KOC (pH 5.5): 138.65; (8)ACD/KOC (pH 7.4): 138.63; (9)H bond acceptors: 2; (10)H bond donors: 2; (11)Freely Rotating Bonds: 1; (12)Polar Surface Area: 14.16 Å²; (13)Index of Refraction: 1.739; (14)Molar Refractivity: 40.41 cm³; (15)Molar Volume: 100.3 cm³; (16)Polarizability: 16.01×10^-24cm³; (17)Surface Tension: 65.8 dyne/cm; (18)Density: 1.327 g/cm³; (19)Flash Point: 161.4 °C; (20)Enthalpy of Vaporization: 61.03 kJ/mol; (21)Boiling Point: 343.2 °C at 760 mmHg; (22)Vapour Pressure: 3.61E-05 mmHg at 25 °C.

Preparation of 3-Hydroxyindole: this chemical can be prepared by Ethyl o-azidobenzoyl(phenyl)acetate. The other product is benzo[c]isoxazol-3-yl-phenyl-acetic acid ethyl ester. This reaction needs spray vacuum pyrolysis. The reaction time is 1 hour at temperature of 350 °C. And the yield is 30 %.

You can still convert the following datas into molecular structure:
(1)SMILES: Oc2c1ccccc1nc2
(2)Std. InChI: InChI=1S/C8H7NO/c10-8-5-9-7-4-2-1-3-6(7)8/h1-5,9-10H
(3)Std. InChIKey: PCKPVGOLPKLUHR-UHFFFAOYSA-N