764-39-6
trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL;PENTENE-2-AL
CAS: 764-39-6
Molecular Formula: C5H8O
764-39-6 - Names and Identifiers
764-39-6 - Physico-chemical Properties
| Molecular Formula | C5H8O |
| Molar Mass | 84.12 |
| Density | 0.86g/mLat 25°C(lit.) |
| Melting Point | -101.15°C (estimate) |
| Boling Point | 80-81°C160mm Hg(lit.) |
| Flash Point | 73°F |
| JECFA Number | 1364 |
| Vapor Presure | 11.5mmHg at 25°C |
| Refractive Index | n20/D 1.440-1.446(li |
| Physical and Chemical Properties | Chemical colorless liquid. It is fragrant like potatoes and peas. Boiling point 124 ℃, flash point 22 ℃. The relative density (d421) is 0.8532 and the refractive index (nD21) is 1.4439. Natural products are found in Connaught oil, refined soybean oil, salmon oil, peas, potatoes, strawberries, tomatoes, etc. |
| Use | Uses GB 2760-1996 provides for the permitted use of food flavors. |
764-39-6 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R10 - Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 29 - Do not empty into drains. |
| UN IDs | UN 1989 3/PG 2 |
| WGK Germany | 3 |
| RTECS | SB1560000 |
| FLUKA BRAND F CODES | 10 |
| Toxicity | msc-ham:lng 300 mmol/L MUREAV 244,153,90 |
764-39-6 - Upstream Downstream Industry
| Raw Materials | Acrolein Allyl phenyl ether |
764-39-6 - Security information
| WGK Germany | 3 |
| RTECS number | SB1560000 |
| F | 10 |
| Toxicity | msc-ham:lng 300 mmol/L MUREAV 244,153,90 |
Last Update：2024-04-10 22:29:15
764-39-6 - Uses and synthesis methods
Toxicity
GRAS(FEMA).
use limited
FEMA: soft drinks, candy, jelly and pudding, all 10.0 mg/kg.
production method
It is obtained by treating β-phenoxyacrolein with secondary amines, Grignard reagents and methylene compounds.
Last Update：2024-04-09 01:59:50
764-39-6 - Nature
| FEMA | 3218 | 2-PENTENAL |
| refractive index | n20/D 1.440-1.446(lit.) |
| flash point | 73 °F |
| JECFA Number | 1364 |
| EPA chemical information | 2-Pentenal (764-39-6) |
Last Update：2024-04-09 20:52:54
764-39-6 - Introduction
trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL;PENTENE-2-AL, chemical formula C5H8O, is a colorless liquid compound. The following is an introduction to the nature, use, preparation and safety information of trans-2-penten-1-al; 2-pentental; 2-pentental; gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 pentental; TRANS-2-PENTEN-1-AL;PENTENE-2-AL:
Nature:
- trans-2-penten-1-al;2-Pentanal; 2-pentental; gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 pentental; TRANS-2-PENTEN-1-AL;PENTENE-2-AL has a strong odor of prenyl aldehyde.
-It can be dissolved in many organic solvents, such as alcohols, ethers and hydrocarbons.
- trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL; The boiling point of PENTENE-2-AL is about 127 ℃ and the density is about 0.803 g/cm.
-It is an unstable compound and is easy to polymerize at room temperature.
Use:
- trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL;PENTENE-2-AL can be used as chemical reagents and intermediates for various reactions in organic synthesis, such as asymmetric synthesis, structural reactions and cycloaddition reactions.
-It is also used in synthetic spices, drugs and pesticides.
Preparation Method:
- trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL; The preparation of PENTENE-2-AL is usually achieved by trans dehydration of isoprenol. This reaction is usually carried out under basic conditions, and either an acidic catalyst or a basic catalyst may be used.
Safety Information:
- trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL;PENTENE-2-AL is irritating to the eyes, skin and respiratory system, and should be careful to avoid contact when using.
-It is a flammable liquid and should be kept away from fire and high temperature. Store in a cool, well-ventilated place and avoid contact with oxidants and strong acids.
-Use appropriate protective measures when handling the compound, such as wearing chemical protective clothing and breathing apparatus.
Please note that trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL;PENTENE-2-AL may have other specific properties, uses and safety information, specific use requires reference to the relevant chemical literature and safety data sheets.
Nature:
- trans-2-penten-1-al;2-Pentanal; 2-pentental; gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 pentental; TRANS-2-PENTEN-1-AL;PENTENE-2-AL has a strong odor of prenyl aldehyde.
-It can be dissolved in many organic solvents, such as alcohols, ethers and hydrocarbons.
- trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL; The boiling point of PENTENE-2-AL is about 127 ℃ and the density is about 0.803 g/cm.
-It is an unstable compound and is easy to polymerize at room temperature.
Use:
- trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL;PENTENE-2-AL can be used as chemical reagents and intermediates for various reactions in organic synthesis, such as asymmetric synthesis, structural reactions and cycloaddition reactions.
-It is also used in synthetic spices, drugs and pesticides.
Preparation Method:
- trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL; The preparation of PENTENE-2-AL is usually achieved by trans dehydration of isoprenol. This reaction is usually carried out under basic conditions, and either an acidic catalyst or a basic catalyst may be used.
Safety Information:
- trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL;PENTENE-2-AL is irritating to the eyes, skin and respiratory system, and should be careful to avoid contact when using.
-It is a flammable liquid and should be kept away from fire and high temperature. Store in a cool, well-ventilated place and avoid contact with oxidants and strong acids.
-Use appropriate protective measures when handling the compound, such as wearing chemical protective clothing and breathing apparatus.
Please note that trans-2-penten-1-al;2-Pentanal;2-pentenal;gamma-methylcrotonaldehyde;Pent-2-enal;FEMA 3218;T2 PENTENAL;TRANS-2-PENTEN-1-AL;PENTENE-2-AL may have other specific properties, uses and safety information, specific use requires reference to the relevant chemical literature and safety data sheets.
Last Update：2024-04-09 15:16:32
