Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

357987

Sigma-Aldrich

1-Methylindole-3-carboxaldehyde

97%

Synonym(s):

3-Formyl-1-methylindole, NSC 83042

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C10H9NO
CAS Number:
19012-03-4
Molecular Weight:
159.18
EC Number:
242-750-3
MDL number:
MFCD00014570
UNSPSC Code:
12352100
PubChem Substance ID:
24861954
NACRES:
NA.22

Quality Level

100

assay

97%

mp

70-72 °C (lit.)

SMILES string

Cn1cc(C=O)c2ccccc12

InChI

1S/C10H9NO/c1-11-6-8(7-12)9-4-2-3-5-10(9)11/h2-7H,1H3

InChI key

KXYBYRKRRGSZCX-UHFFFAOYSA-N

Related Categories

General description

1-Methylindole-3-carboxaldehyde is a heterocyclic indole aldehyde. 1-Methylindole-3-carboxaldehyde on condensation with 2-hydroxybenzohydrazide yields Schiff base.

Application

1-Methylindole-3-carboxaldehyde may be used in the synthesis of (Z)-3-(1-methyl-1H-indol-3-yl)-2-(thiophen-3-yl)acrylonitrile, via base-catalyzed condensation with thiophene-3-acetonitrile. It was also used in the preparation of monomer, required for the synthesis of poly(3-vinyl-1-methylindole).
  • Reactant for preparation of nitroolefins and β-nitroalcohols via microwave- or ultrasound-assisted Henry reactions
  • Reactant for synthesis of quinolinones via three-component Ugi reaction
  • Reactant for synthesis of α-ketoamides as inhibitors of Dengue virus protease with antiviral activity in cell-culture
  • Reactant for preparation of thiazolopyrimidinones as inhibitors of Bcl-2 proteins
  • Reactant for preparation of vinylindoles via Peterson olefination or olefination with Nysted reagent
  • Reactant for preparation of indolyl alkenes from microwave-enhanced Knoevenagel condensation as antibacterial agents

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Preliminary analysis of the 1H-and 13C-NMR spectra of poly (3-vinyl-1-methylindole).
Trumbo DL.
Polymer Bull., 37(1), 75-80 (1996)
Vijayakumar N Sonar et al.
Acta crystallographica. Section C, Crystal structure communications, 60(Pt 3), o217-o218 (2004-03-09)
The title compound, C16H12N2S, has been synthesized by base-catalyzed condensation of 1-methylindole-3-carboxaldehyde with thiophene-3-acetonitrile. The product assumes an approximately planar Z configuration. The molecule has a thienyl-ring flip disorder.
Wagee A Yehye et al.
Acta crystallographica. Section E, Structure reports online, 64(Pt 9), o1824-o1824 (2008-01-01)
In the crystal structure of the title Schiff-base, C(20)H(21)N(3)O(4), the amino group forms an N-H⋯O hydrogen bond to the acetyl group of an adjacent mol-ecule, forming a zigzag chain. The 2-hydr-oxy group is inter-nally hydrogen bonded to the amido group

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service