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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 2782313Generated: October 23, 2026

5-Iodo-1H-indole

5-IODO-1H-INDOLE · 5-Iodoindole · 5-Indoindole · 5-Iodoindole 97% · 1H-Indole, 5-iodo- · 5-Iodo-1H-indole97% · 5-Iodo-1H-indole 97% · 5-Iodo-1H-indole, 95+%

https://huagongshe.com/en/chemical/2782313

5-Iodo-1H-indole molecular structure

Identifiers & Physical Properties

CAS No.16066-91-4
Molecular formulaC8H6IN
Average molar mass243.04 g/mol
Monoisotopic mass242.95449719 g/mol
SMILESIc1ccc2[nH]ccc2c1
InChIKeyTVQLYTUWUQMGMP-UHFFFAOYSA-N
PubChem CID2782313
EC No.628-024-2
DTXSIDDTXSID60382031

Chemical & Physical Properties

XLogP3
Topological polar surface area15.8
Hydrogen bond donors1
Hydrogen bond acceptors0
Rotatable bonds0
Heavy atoms10
Formal charge0
Complexity126
Melting point101-104 °C (lit.)
Boiling point341.7±15.0 °C(Predicted)
Density1.960±0.06 g/cm3(Predicted)
Storage conditionsKeep in dark place,Sealed in dry,Room Temperature
pKa (acidity coefficient)16.14±0.30(Predicted)
Physical stateSolid or Crystalline Solid
ColorWhite to pale brown
SensitivityLight Sensitive
InChIInChI=1S/C8H6IN/c9-7-1-2-8-6(5-7)3-4-10-8/h1-5,10H
InChIKeyTVQLYTUWUQMGMP-UHFFFAOYSA-N
SMILESN1C2=C(C=C(I)C=C2)C=C1
CAS DataBase Reference16066-91-4(CAS DataBase Reference)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH315-H319-H335
GHS precautionary statementsP261-P264-P271-P280-P302+P352-P305+P351+P338
Target organsRespiratory system
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Gloves
Hazard symbolsXi
Risk statements (R)36/37/38
Safety statements (S)26-36-37
Water hazard class (WGK)3
Hazard NoteIrritant
Customs code29339900
Storage class11 - Combustible Solids
Hazard classEye Irrit. 2Skin Irrit. 2STOT SE 3

Safety & Regulations

GHS classificationWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 46 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK)3
Customs code29339900
Risk statements (R)36/37/38
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXi
hazard_noteIrritant
Safety statements (S)26-36-37
Storage class11 - Combustible Solids
Target organsRespiratory system
GHS hazard statementsH315-H319-H335
Hazard classEye Irrit. 2Skin Irrit. 2STOT SE 3
GHS precautionary statementsP261-P264-P271-P280-P302+P352-P305+P351+P338

Applications & Uses

Uses

5-Iodoindole is an important organic intermediate. It can be used in agrochemical, pharmaceutical and dyestuff field. It is used as the starting material in the synthesis of 5-(α-fluorovinyl)-N-tosylindole.

General Description

5-Iodoindole can be synthesized via nitration of m-toluidine.