Indole-2-carboxaldehyde
- CAS NO.：19005-93-7
- Empirical Formula: C9H7NO
- Molecular Weight: 145.16
- MDL number: MFCD03001425
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:59:00
What is Indole-2-carboxaldehyde?
The Uses of Indole-2-carboxaldehyde
Indole-2-carboxaldehyde is a useful starter in indole and natural product chemistry.
Synthesis Reference(s)
Tetrahedron, 36, p. 2505, 1980 DOI: 10.1016/0040-4020(80)80230-4
Purification Methods
Recrystallise the indole from aqueous MeOH (m 141-142o), Et2O (m 138o) or sublime it in vacuo (m 138o).The N,N-dimethylhydrazone [127280-17-5] has m 105-106o (from hexane/*C6H6). The thiosemicarbazone has m 229o (dec) (from 50% aqueous EtOH) [Doyle et al. J Chem Soc 2854 1956]. The 2,4-dinitrophenylhydrazone has m 315-320o (dec) (from pyridine/MeOH). [Suzuki et al. Chem Pharm Bull Jpn 39 2170 1991, Beilstein 21 III/IV 3754.]
Properties of Indole-2-carboxaldehyde
| Melting point: | 138-142 °C |
| Boiling point: | 339.1±15.0 °C(Predicted) |
| Density | 1.278±0.06 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | Soluble in Methanol. |
| form | Solution |
| pka | 15.05±0.30(Predicted) |
| color | Clear pale yellow to grey |
| Sensitive | Air Sensitive |
| CAS DataBase Reference | 19005-93-7(CAS DataBase Reference) |
Safety information for Indole-2-carboxaldehyde
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
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 Indole-2-carboxaldehyde
| InChIKey | SBNOTUDDIXOFSN-UHFFFAOYSA-N |
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