Molecular Structure of 6-Fluoroindole (CAS No.399-51-9):

Molecular Formula: C₈H₆FN
Molecular Weight: 135.14
IUPAC Name: 6-Fluoro-1H-indole
CAS No: 399-51-9 
EINECS: 206-917-4
H bond acceptors: 1
H bond donors: 1
Freely Rotating Bonds: 0
Polar Surface Area: 4.93 Å²
Index of Refraction: 1.646
Molar Refractivity: 38.52 cm³
Molar Volume: 106 cm³
Surface Tension: 47 dyne/cm
Density: 1.273 g/cm³
Flash Point: 109.9 °C
Enthalpy of Vaporization: 47.56 kJ/mol
Boiling Point: 258 °C at 760 mmHg
Vapour Pressure: 0.0226 mmHg at 25°C
Melting Point: 72-77 ºC
Water Solubility: Insoluble
Sensitive Light Sensitive
Appearance: Beige-brown crystalline powder
InChI: InChI=1/C8H6FN/c9-7-2-1-6-3-4-10-8(6)5-7/h1-5,10H
InChIKey: YYFFEPUCAKVRJX-UHFFFAOYAE
Std. InChI: InChI=1S/C8H6FN/c9-7-2-1-6-3-4-10-8(6)5-7/h1-5,10H
Std. InChIKey: YYFFEPUCAKVRJX-UHFFFAOYSA-N
Product Categories: Blocks;FluoroCompounds;IndolesOxindoles;Indole/indoline/oxindole;Indole and Indoline;Indoles and derivatives;Indole Series;Indoles;Simple Indoles;Indole;FA - FLBuilding Blocks;Alphabetic;F;Heterocyclic Building Blocks;Building Blocks

Safety Information of 6-Fluoroindole (CAS No.399-51-9):
Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 3
F: 10
Hazard Note: Irritant
HazardClass: IRRITANT

   6-Fluoroindole (CAS No.399-51-9), it also can be called 6-Fluoro-1H-indole ; 1H-Indole, 6-fluoro- .