1-Methylindole-3-carboxaldehyde
Synonym(s):3-Formyl-1-methylindole;NSC 83042
- CAS NO.:19012-03-4
- Empirical Formula: C10H9NO
- Molecular Weight: 159.18
- MDL number: MFCD00014570
- EINECS: 242-750-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:14:12
What is 1-Methylindole-3-carboxaldehyde?
Chemical properties
light yellow to orange or brown crystalline powder
The Uses of 1-Methylindole-3-carboxaldehyde
1-Methylindole-3-carboxaldehyde is used as a 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 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).
The Uses of 1-Methylindole-3-carboxaldehyde
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.
Synthesis Reference(s)
Tetrahedron, 49, p. 4015, 1993 DOI: 10.1016/S0040-4020(01)89915-4
Synthesis, p. 396, 1987 DOI: 10.1055/s-1987-27960
General Description
1-Methylindole-3-carboxaldehyde is a heterocyclic indole aldehyde. 1-Methylindole-3-carboxaldehyde on condensation with 2-hydroxybenzohydrazide yields Schiff base.
Properties of 1-Methylindole-3-carboxaldehyde
| Melting point: | 70-72 °C (lit.) |
| Boiling point: | 186-189 °C(Press: 3-4 Torr) |
| Density | 1.10±0.1 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | Crystalline Powder and Chunks |
| color | Light yellow to orange or brown |
| Water Solubility | Insoluble in water. |
| Sensitive | Air Sensitive |
| BRN | 121302 |
| CAS DataBase Reference | 19012-03-4(CAS DataBase Reference) |
Safety information for 1-Methylindole-3-carboxaldehyde
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 1-Methylindole-3-carboxaldehyde
New Products
2-(3-Methyl-1,2,4-oxadiazol-5-yl)acetic acid (as potassium salt) 2-fluoro-4-iodoaniline 4-Iodo-3,5-dimethylbenzonitrile Atorvastatin amide impurity/Atorvastatin EP Impurity F(Calcium Salt) Lantanoprost rc B Clidinium Bromide Impurity Noradrenaline EP Impurity D/Noradrenaline Methyl Ether Cetirizine EP Impurity A/Cetirizine CBHP Impurity N-Nitroso hydroxy Cetrizine EP Impurity-A (4-Fluoro-2-methoxy-5-nitro- phenyl)-[4- (1-methyl-1H- indol-3- yl)-pyrimidin-2-yl]- amine 6-bromo-4-fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazole tert-butyl 4-(6-((7-cyclo pentyl -6-(dimethyl carbamoyl) -7H-pyrrolo [2,3-d]pyrimidin-2-yl) amino)pyridin-3-yl) piperazine-1-carboxylate 2-Fluoro-4-nitrotoluene 1-(2-amino-5-hydroxy phenyl)propan-1-one (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3- amine 3-(Dimethylamino)benzoic acid 2-Amino-5-chloropyridine 4-(Methylamino)-3-nitrobenzoic Acid 5-Chloro-2-Nitroaniline 3,5-dibenzyloxy Acetophenone 2,4-Diamino-6-hydroxypyrimidine 2-Chloro Benzylcyanide 3-chlorobenzyl cyanide 3,4 Diethoxy BenzylcyanideRelated products of tetrahydrofuran








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