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5-Hydroxyindoleacetic Acid

CAS: 1321-73-9 | C10H9NO3

2D Structure

3D Structure

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Basic Information

CAS Registry Number: 1321-73-9
Molecular Formula: C10H9NO3
Molecular Mass: 191.19 g/mol

Names and Synonyms:

5-Hydroxyindoleacetic Acid
1H-Indole-3-acetic acid, 5-hydroxy-
Indole-3-acetic acid, 5-hydroxy-
5-Hydroxy-1H-indole-3-acetic acid
5-Hydroxyindoleacetic acid
5-Hydroxyindole-3-acetic acid
5-HIAA
5-Hydroxyindol-3-ylacetic acid
5-Oxyindoleacetic acid
5-Hydroxy-3-indolylacetate
5-Hydroxyheteroauxin
5-Hydroxy-IAA
NSC 90432
(5-Hydroxy-1H-indol-3-yl)acetic acid
2-(5-Hydroxy-1H-indol-3-yl)acetic acid

Identifiers:

SMILES:
O=C(O)Cc1c[nH]c2ccc(O)cc12
InChI:
InChI=1S/C10H9NO3/c12-7-1-2-9-8(4-7)6(5-11-9)3-10(13)14/h1-2,4-5,11-12H,3H2,(H,13,14)

Key Properties

Melting Point
162 °C (decomp) CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 191.19 g/mol CAS Common Chemistry
191.186 g/mol RDKit
191.058243148 g/mol RDKit
Canonical SMILES O=C(O)CC1=CNC=2C=CC(O)=CC21 CAS Common Chemistry
InChI InChI=1S/C10H9NO3/c12-7-1-2-9-8(4-7)6(5-11-9)3-10(13)14/h1-2,4-5,11-12H,3H2,(H,13,14) CAS Common Chemistry
InChI Key InChIKey=DUUGKQCEGZLZNO-UHFFFAOYSA-N CAS Common Chemistry
Melting Point 162 °C (decomp) CAS Common Chemistry
Name 5-Hydroxyindoleacetic acid CAS Common Chemistry
Heavy Atom Count 14 RDKit
Hydrogen Bond Acceptors 2 RDKit
Hydrogen Bond Donors 3 RDKit
Rotatable Bonds 2 RDKit
Aromatic Ring Count 2 RDKit
Topological Polar Surface Area 73.32 Ų RDKit
LogP 1.5006 RDKit
Molar Refractivity 51.30330000000002 RDKit

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