2,3,3-Trimethylindolenine
Synonym(s):2,3,3-Trimethyl-3H-indole
- CAS NO.：1640-39-7
- Empirical Formula: C11H13N
- Molecular Weight: 159.23
- MDL number: MFCD00005724
- EINECS: 216-685-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-03-11 10:40:27
What is 2,3,3-Trimethylindolenine?
Chemical properties
clear yellow to red-brown liquid
The Uses of 2,3,3-Trimethylindolenine
2,3,3-Trimethylindolenine is an indole derivative used in the preparation of cyanine dye labelleing reagents and other imaging agents.
The Uses of 2,3,3-Trimethylindolenine
It is used in synthesis of cyanine dyes.
Synthesis Reference(s)
The Journal of Organic Chemistry, 33, p. 4283, 1968 DOI: 10.1021/jo01275a066
Properties of 2,3,3-Trimethylindolenine
| Melting point: | 6-8°C |
| Boiling point: | 228-229 °C744 mm Hg(lit.) |
| Density | 0.992 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | 200 °F |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | Soluble in chloroform, toluene or dichlorobenzene. |
| form | Liquid |
| pka | 6.33±0.40(Predicted) |
| color | Clear yellow to red-brown |
| BRN | 119740 |
| InChI | InChI=1S/C11H13N/c1-8-11(2,3)9-6-4-5-7-10(9)12-8/h4-7H,1-3H3 |
| CAS DataBase Reference | 1640-39-7(CAS DataBase Reference) |
| NIST Chemistry Reference | 3H-Indole, 2,3,3-trimethyl-(1640-39-7) |
| EPA Substance Registry System | 3H-Indole, 2,3,3-trimethyl- (1640-39-7) |
Safety information for 2,3,3-Trimethylindolenine
| 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 2,3,3-Trimethylindolenine
| InChIKey | FLHJIAFUWHPJRT-UHFFFAOYSA-N |
| SMILES | N1C2=C(C=CC=C2)C(C)(C)C=1C |
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