1-UNDECENE
- CAS NO.：821-95-4
- Empirical Formula: C11H22
- Molecular Weight: 154.29
- MDL number: MFCD00008956
- EINECS: 212-483-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:10
What is 1-UNDECENE?
The Uses of 1-UNDECENE
1-Undecene is a pharmaceutical intermediate and a useful reagent for organic synthesis.
The Uses of 1-UNDECENE
1-undecene is an alkene that can be used as a reactant:
- In the Pd-catalyzed aerobic oxidative amination reaction with nitrogen nucleophiles to produce useful amine analogs.
- To prepare a key intermediate in the total synthesis of (+)-deoxoprosopinine.
Definition
ChEBI: An alkene that is undecane containing one double bond located at position 1.
Synthesis Reference(s)
Chemistry Letters, 7, p. 1155, 1978
The Journal of Organic Chemistry, 47, p. 876, 1982 DOI: 10.1021/jo00344a024
Tetrahedron, 49, p. 7104, 1993 DOI: 10.1016/S0040-4020(01)87982-5
General Description
1-undecene (or α-undecene) is an organic compound, which belongs to the class of unsaturated aliphatic hydrocarbons. It is a hydrophobic molecule found in the essential oil of Farfugium japonicum and some mushroom species.
Health Hazard
Recommended Personal Protective Equipment: Goggles or face shield; rubber gloves; Symptoms Following Exposure: Aspiration hazard if ingested. Slight skin and eye irritation. No inhalation hazard expected; General Treatment for Exposure: INHALATION: remove victim to fresh air. INGESTION: do NOT lavage or induce vomiting; give vegetable oil and demulcents; call a doctor. EYES: flush with water for 15 min. SKIN: wipe off, wash with soap and water; Toxicity by Inhalation (Threshold Limit Value): Data not available; Short-Term Exposure Limits: Data not available; Toxicity by Ingestion: Data not available; Late Toxicity: Data not available; Vapor (Gas) Irritant Characteristics: Slight smarting of eyes and respiratory system at high concentrations. The effect is temporary; Liquid or Solid Irritant Characteristics: Minimum hazard. If spilled on clothing and allowed to remain, may cause smarting and reddening of the skin; Odor Threshold: Data not available.
Chemical Reactivity
Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
Properties of 1-UNDECENE
| Melting point: | -49 °C (lit.) |
| Boiling point: | 192-193 °C (lit.) |
| Density | 0.75 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 145 °F |
| form | clear liquid |
| color | Colorless to Light yellow |
| Specific Gravity | 0.750 |
| Odor | Mild, pleasant. |
| Water Solubility | Solunle in ether, chloroform and ligroin. Insoluble in water. |
| BRN | 1740044 |
| Dielectric constant | 2.1699999999999999 |
| CAS DataBase Reference | 821-95-4(CAS DataBase Reference) |
| EPA Substance Registry System | 1-Undecene (821-95-4) |
Safety information for 1-UNDECENE
| 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. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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-UNDECENE
New Products
4-Iodo-3,5-dimethylbenzonitrile 2-fluoro-4-iodoaniline 2-(3-Methyl-1,2,4-oxadiazol-5-yl)acetic acid (as potassium salt) 6,6'-methylenebis(9-methyl-3-((2-methyl-1H-imidazol-1-yl)methyl)-2,3-dihydro-1H-carbazol-4(9H)-one) 3-Bromo-2-fluorobenzoic acid Quinuclidine-4-carbonitrile N,N CARBONYL DIIMIDAZOLE 2-Amino-5-bromo-4-(trifluoromethyl)pyridine（RM for Indian lab) (RS)-beta-Amino-beta-(4-bromophenyl)propionic acid Tetrabutylammonium perchlorate N,O-Dimethylhydroxylamine hydrochloride (R)-1-Benzyl-3-pyrrolidinecarbonitrile Bupropian related compound F 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-(5-amino-1-methyl-1h-benzoimidazol-2-yl)-butyric acid isopropyl ester. 1,4-bis(methylsulfonyl)butane 4-Cyano-N-Methacryloyl-3-Trifluoromethyl Aniline 5-Methyl-1,3-benzenediacetonitrile 4-Fluorothiophenol 1-methyl amino-2,4-dinitro benzeneRelated products of tetrahydrofuran
![4-methyl-1-oxaspiro[5.5]undecene](https://img.chemicalbook.in/CAS/GIF/68228-06-8.gif)
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