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5-Hydroxyindole

HCID 16054
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
1953-54-4
Standard SMILES
Oc1ccc2[nH]ccc2c1
InChIKey
LMIQERWZRIFWNZ-UHFFFAOYSA-N
Molecular formula
C8H7NO
Average molar mass
133.15 g/mol
Monoisotopic mass
133.05276385

Overview

5-hydroxyindole is a member of the class of hydroxyindoles that is 1H-indole in which the hydrogen at position 5 has been replaced by a hydroxy group. It has a role as a human metabolite.

Names & identifiers

Preferred name
5-Hydroxyindole
IUPAC
1H-indol-5-ol
English name
5-Hydroxyindole
Molecular formula
C8H7NO
Molecular weight
133.15

Names & synonyms

5-Hydroxyindole1H-Indol-5-ol1953-54-4INDOL-5-OL5-Hydroxy-1H-indoleDTXSID00173187320UN7XZYNNSC-87503CHEBI:896491 H-indol-5-olRefChem:102888DTXCID5095678
Show more names
5-HydroxyindolineNSC 875035-hdroxyindolehydroxy-5indoleHydroxyindole,98%
217-782-65-IndololHydroxy-5 indole3fuhMFCD000056771h-indole-5-ol5-hydroxylindole5-hydroxy-indol

Database identifiers

CAS
1953-54-4
PubChem CID
16054
DTXSID
DTXSID00173187
ChEMBL
CHEMBL404923
ChEBI
CHEBI:89649
UNII
320UN7XZYN
EC Number
217-782-6
Nikkaji
J41.080B

Properties

Computed structural properties

XLogP
2
Topological polar surface area
36 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
1
Rotatable bonds
0
Heavy atoms
10
Formal charge
0
Complexity
126

Experimental & physicochemical properties

LogP1.29

Physicochemical properties

Melting point
106 · 106-108 °C(lit.)
Boiling point
245.66 °C · 245.66°C (rough estimate)
Density
1.1475 · 1.1475 (rough estimate)
refractive index
1.526 · 1.5260 (estimate)
storage temp.
-20 °C · Keep in dark place,Sealed in dry,Store in freezer, under -20°C
solubility
38 g/l · 38g/l
form
Crystalline Needles or Powder
pka
9.98 · 9.98±0.40(Predicted)
color
beige
Sensitive
Light Sensitive
BRN
112349 · 112349
InChI
InChI=1S/C8H7NO/c10-7-1-2-8-6(5-7)3-4-9-8/h1-5,9-10H
InChIKey
LMIQERWZRIFWNZ-UHFFFAOYSA-N

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Warning

H315 (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 47 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Hazard Classes and CategoriesSkin Irrit. 2 (100%)

Safety data

PPE
dust mask type N95 (US), Eyeshields, Gloves
wgk
3
rtecs
NM2430000
hs_code
29339990
risk_code
36/37/38
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xi
safety_code
26-36-37/39
hazard_class
IRRITANT, KEEP COLD
Storage Class
11 - Combustible Solids
Hazard statements
H315-H319-H335
Precautionary statements
P261-P280a-P304+P340-P305+P351+P338-P405-P501a

Chemistry & industry

Applications · 2 items

Uses• ;Reactant for preparation of (oxoimidazolidinyl/oxopyrimidinyl)benzenesulfonates as antitumor agents and tubulin inhibitors1• ;Reactant for preparation of anthranilic acids2• ;Reactant for preparation of indole compounds as dopamine D2 receptor antagonists3• ;Reactant for preparation of naphthalimide- or carbazole-containing human β-adrenoceptor ligands4• ;Reactant for preparation of melanins as nature-inspired radioprotectors5• ;Reactant for preparation of 5-vinyl-3-pyridinecarbonitriles as PKCθ inhibitors6

Uses5-Hydroxyindole is a hydroxylated indole used as a building block in the preparation of various pharmaceutical compounds such as indole based neurochemicals. 5-Hydroxyindole is a metabolite of Tryptophan (T894800). 5-Hydroxyindole displayed weak inhibitory activity on human melanoma tyrosinase. 5-Hydroxyindole also showed inhibition of serotonin transport by blood platelets.

Upstream & downstream products

Upstream raw materials

3-Methyl-4-nitrophenolpotassium ferricyanidePalladiumBenzyl bromideN,N-Dimethylformamide dimethyl acetal1-[2-(5-Benzyloxy-2-nitrophenyl)vinyl]pyrrolidine5-(prop-2-ynynloxy)indole2,3-Dihydroindol-5-ol4-Benzyloxyphenylhydrazine5-Indolylboronic acid5-Methoxyindole

Related reactions

224 records
New reaction record
HRID 18158 reaction equation
HRID 18158As reactantuspto-grants-2010_06
HRID 20984 reaction equation
HRID 20984As reactantuspto-grants-2010_06
HRID 41061 reaction equation
HRID 41061As reactantuspto-grants-2013_09
HRID 41062 reaction equation
HRID 41062As reactantuspto-grants-2013_09
HRID 41063 reaction equation
HRID 41063As reactantuspto-grants-2013_09
HRID 45065 reaction equation
HRID 45065As reactantuspto-grants-2013_09
HRID 45083 reaction equation
HRID 45083As reactantuspto-grants-2013_09
HRID 45087 reaction equation
HRID 45087As reactantuspto-grants-2013_09
Page 1 of 28

Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
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SMILES
N1C2=C(C=C(O)C=C2)C=C1
CAS DataBase Reference
1953 · 1953-54-4(CAS DataBase Reference)
EWG's Food Scores
1 · 1
FDA UNII
320 UN7XZYN · 320UN7XZYN
NIST Chemistry Reference
-5 · Indol-5-ol(1953-54-4)
UNSPSC Code
12352100 · 12352100
NACRES
22 · NA.22
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
315 · H315-H319-H335
Precautionary statements
261 · P261-P280a-P304+P340-P305+P351+P338-P405-P501a
PPE
95 · dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes
Xi
Risk Statements
36 · 36/37/38
Safety Statements
26 · 26-36-37/39
WGK Germany
3 · 3
RTECS
2430000 · NM2430000
HazardClass
IRRITANT, KEEP COLD
HS Code
29339990 · 29339990
Storage Class
11 · 11 - Combustible Solids
2,6-Dimethylaniline
5-Benzyloxyindole

Downstream products

5-(6-Chloropyrimidin-4-yloxy)-1H-indole

Additional notes

DefinitionChEBI: 5-hydroxyindole is a member of the class of hydroxyindoles that is 1H-indole in which the hydrogen at position 5 has been replaced by a hydroxy group. It has a role as a human metabolite.