4-ETHYNYLANILINE
Synonym(s):1-Amino-4-ethynylbenzene;P-APAC
- CAS NO.：14235-81-5
- Empirical Formula: C8H7N
- Molecular Weight: 117.15
- MDL number: MFCD00168824
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:09
What is 4-ETHYNYLANILINE?
Chemical properties
White or light yellow solid
The Uses of 4-ETHYNYLANILINE
4-Ethynylaniline may be used in the synthesis of N-methyliminodiethyl 4-(4-ethynylphenyliminomethyl)benzeneboronate. It can also be used to prepare an acetylene ligand, HC2-NDI (NDI= 1,4,5,8-naphthalenediimide).
What are the applications of Application
4-Ethynylaniline is an alkyne component in indole synthesis
Definition
ChEBI: 4-ethynylaniline is a substituted aniline.
Synthesis Reference(s)
The Journal of Organic Chemistry, 59, p. 5818, 1994 DOI: 10.1021/jo00098a051
General Description
4-Ethynylaniline, also known as p-ethynylaniline, is a terminal alkyne. Its synthesis using 2-methyl-3-butyn-2-ol (MEBYNOL) has been reported. The transition metal catalyzed polymerization of 4-ethynylaniline to afford poly(4-ethynylaniline) has been reported. The impact of the surface functionalization with 4-ethynylaniline on the thermal behavior of multi-walled carbon nanotubes (MWNTs) and graphene has been investigated.
Properties of 4-ETHYNYLANILINE
| Melting point: | 98-102 °C (dec.) (lit.) |
| Boiling point: | 99-101 °C(Press: 13 Torr) |
| Density | 1.05±0.1 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | Crystalline Powder |
| pka | 3.11±0.10(Predicted) |
| color | Yellow to brown |
| BRN | 2205181 |
| CAS DataBase Reference | 14235-81-5(CAS DataBase Reference) |
Safety information for 4-ETHYNYLANILINE
| 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 4-ETHYNYLANILINE
| InChIKey | JXYITCJMBRETQX-UHFFFAOYSA-N |
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