2-Acetyl-1-ethylpyrrole
- Product Name
- 2-Acetyl-1-ethylpyrrole
- CAS No.
- 39741-41-8
- Chemical Name
- 2-Acetyl-1-ethylpyrrole
- Synonyms
- FEMA 3147;FEMA NUMBER 3147;1-Ethyl-2-acetylazole;1-ETHYL-2-ACETYLPYRROLE;2-ACETYL-N-ETHYLPYRROLE;2-ACETYL-1-ETHYLPYRROLE;N-ETHYL-2-ACETYL PYRROLE;2-Acetyl-1-ethyl-1H-pyrrole;2-Acetyl-1-ethylpyrrole >2-Acetyl-1-ethylpyrrole USP/EP/BP
- CBNumber
- CB9698363
- Molecular Formula
- C8H11NO
- Formula Weight
- 137.18
- MOL File
- 39741-41-8.mol
2-Acetyl-1-ethylpyrrole Property
- Boiling point:
- 82 °C / 12mmHg
- Density
- 1.01
- refractive index
- 1.5280-1.5340
- FEMA
- 3147 | 1-ETHYL-2-ACETYLPYRROLE
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- form
- clear liquid
- pka
- -7.46±0.70(Predicted)
- color
- Colorless to Yellow to Orange
- Odor
- at 0.10 % in propylene glycol. nutty roasted
- Odor Type
- nutty
- JECFA Number
- 1305
- LogP
- 1.19
- CAS DataBase Reference
- 39741-41-8(CAS DataBase Reference)
- EPA Substance Registry System
- Ethanone, 1-(1-ethyl-1H-pyrrol-2-yl)- (39741-41-8)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38-36
- Safety Statements
- 26-37/39
- HS Code
- 2933998090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H227Combustible liquid
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P370+P378In case of fire: Use … for extinction.
P403+P235Store in a well-ventilated place. Keep cool.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- CDS003863
- Product name
- 2-acetyl-1-ethylpyrrole
- Purity
- AldrichCPR
- Packaging
- 250MG
- Price
- $68.1
- Updated
- 2023/06/20
- Product number
- A1977
- Product name
- 2-Acetyl-1-ethylpyrrole
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $19
- Updated
- 2025/07/31
- Product number
- A1977
- Product name
- 2-Acetyl-1-ethylpyrrole
- Purity
- >98.0%(GC)
- Packaging
- 25g
- Price
- $74
- Updated
- 2025/07/31
- Product number
- A174608
- Product name
- 2-Acetyl-1-ethylpyrrole
- Packaging
- 1g
- Price
- $45
- Updated
- 2021/12/16
- Product number
- A174608
- Product name
- 2-Acetyl-1-ethylpyrrole
- Packaging
- 5g
- Price
- $60
- Updated
- 2021/12/16
2-Acetyl-1-ethylpyrrole Chemical Properties,Usage,Production
Chemical Properties
1-Ethyl-2-acetylpyrrole ha a warm, nutty, ethereal aroma.
Occurrence
Reported found in roasted coffee and green tea
Definition
ChEBI: 2-Acetyl-1-ethylpyrrole is an aromatic ketone.
Synthesis
1072-83-9
105-58-8
39741-41-8
1) Assemble a 2.1 L three-necked flask equipped with a stirrer, thermometer, and constant pressure dropping funnel. Place the lower part of the flask in an ice-water bath to cool. 2) Add 140.0 g (2.125 mol) of potassium hydroxide, 180 mL of water, 8.0 g (0.014 mol) of octadecyltrimethylammonium chloride, and 60.0 g (0.545 mol) of 2-acetylpyrrole to the flask, and stir until completely dissolved, while heating to 80-90 °C. 3) Slowly add diethyl carbonate 94.9 g (0.805 mol) dropwise, under the condition of maintaining the temperature at 80-90 °C, to the flask. conditions, slowly add diethyl carbonate 94.9 g (0.805 mol) dropwise and continue stirring for 1 h. 4) After the reaction is complete, maintain the reaction temperature at 80~90 °C and continue holding for 1 h. 5) Add 120 mL of water while cooling the reaction mixture to about 60 °C. 6) At 60±5 °C, adjust the pH of the reaction solution with about 140 mL of concentrated hydrochloric acid to 7. 7) Add about 2 mL of water to the reaction mixture and cool to about 60 °C. 8) Add about 2 mL of water to the reaction mixture. 9) Add about 1 mL of water to the reaction mixture. 10) Add about 1 mL of water to the reaction mixture. The pH of the reaction solution was adjusted to 7 with about 140 mL of concentrated hydrochloric acid at 60±5°C. 7) The heating was stopped and the reaction was allowed to stand for layering, the lower aqueous phase was discarded, and the upper oily phase was collected, yielding a crude product of 72 g with a purity of about 95.8%. 8) The crude product was purified by distillation under reduced pressure, yielding a final product of 56.6 g with a purity of 99%.
References
[1] Patent: CN107892665, 2018, A. Location in patent: Paragraph 0009; 0011
2-Acetyl-1-ethylpyrrole Preparation Products And Raw materials
Raw materials
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View Lastest Price from 2-Acetyl-1-ethylpyrrole manufacturers
- Product
- 2-Acetyl-1-ethylpyrrole 39741-41-8
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 98.0%
- Supply Ability
- 10000KGS
- Release date
- 2025-06-26
- Product
- 2-Acetyl-1-ethylpyrrole 39741-41-8
- Price
- US $40.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 5000kg/week
- Release date
- 2024-05-17
- Product
- 2-Acetyl-1-ethylpyrrole 39741-41-8
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1ton
- Release date
- 2022-10-09