2,4-Dimethylpyrrole
- Product Name
- 2,4-Dimethylpyrrole
- CAS No.
- 625-82-1
- Chemical Name
- 2,4-Dimethylpyrrole
- Synonyms
- 2,4-DIMETHYL-1H-PYRROLE;1H-Pyrrole, 2,4-dimethyl-;2,4-DIMETHYLPYRROLE;pyrrole,2,4-dimethyl-;2,4-DiMethyl-1-pyrrole;Pyrrole, 2,4-dimethyl-;2,4-Dimethylpyrrole>2,4-Dimethylpyrrole 98%;2,4-Dimethylpyrrole,97%;2,4-Dimethylpyrrole ,98%
- CBNumber
- CB2266022
- Molecular Formula
- C6H9N
- Formula Weight
- 95.14
- MOL File
- 625-82-1.mol
2,4-Dimethylpyrrole Property
- Melting point:
- 6.5°C (estimate)
- Boiling point:
- 165-167 °C (lit.)
- Density
- 0.924 g/mL at 25 °C (lit.)
- refractive index
- n20/D 1.496(lit.)
- Flash point:
- >230 °F
- storage temp.
- Keep in dark place,Inert atmosphere,2-8°C
- solubility
- Chloroform (Slightly), Methanol (Slightly)
- pka
- 18.03±0.50(Predicted)
- form
- Crystalline Powder
- color
- Orange-red to maroon, brown or violet
- Stability:
- Light Sensitive
- InChIKey
- MFFMQGGZCLEMCI-UHFFFAOYSA-N
- LogP
- 1.667 (est)
- CAS DataBase Reference
- 625-82-1(CAS DataBase Reference)
- NIST Chemistry Reference
- 1H-Pyrrole, 2,4-dimethyl-(625-82-1)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-37/39
- WGK Germany
- 3
- HS Code
- 29339900
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 390836
- Product name
- 2,4-Dimethylpyrrole
- Purity
- 97%
- Packaging
- 1g
- Price
- $60.4
- Updated
- 2024/03/01
- Product number
- 390836
- Product name
- 2,4-Dimethylpyrrole
- Purity
- 97%
- Packaging
- 5g
- Price
- $156
- Updated
- 2024/03/01
- Product number
- D2848
- Product name
- 2,4-Dimethylpyrrole
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $37
- Updated
- 2024/03/01
- Product number
- D2848
- Product name
- 2,4-Dimethylpyrrole
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $106
- Updated
- 2024/03/01
- Product number
- D2848
- Product name
- 2,4-Dimethylpyrrole
- Purity
- >98.0%(GC)
- Packaging
- 25g
- Price
- $396
- Updated
- 2024/03/01
2,4-Dimethylpyrrole Chemical Properties,Usage,Production
Chemical Properties
clear light yellow to light yellow-orange liquid
Uses
2,4-Dimethylpyrrole may be used in the synthesis of the following:
- 2,5-bis(2′,4′-dimethyl-5′-pyrryl)p-benzoquinone
- boron dipyrromethene (BODIPY) dyes
- 2,4-dimethyl-6-methoxyprodigiosene
Uses
2,4-Dimethylpyrrole is a substituted pyrrole. Its synthesis by using ethyl acetoacetate as starting material has been reported. Its basicity has been evaluated from UV spectral data.Its photodecomposition on irradiation has been reported to afford H2, CH4, C2H6 and polymeric products.
2,4-Dimethylpyrrole may be used in the synthesis of the following:
2,5-bis(2′,4′-dimethyl-5′-pyrryl)p-benzoquinone.
boron dipyrromethene (BODIPY) dyes.
2,4-dimethyl-6-methoxyprodigiosene.
Synthesis Reference(s)
Synthesis, p. 1585, 2000 DOI: 10.1055/s-2000-7618
General Description
2,4-Dimethylpyrrole is a substituted pyrrole. Its synthesis by using ethyl acetoacetate as starting material has been reported. Its basicity has been evaluated from UV spectral data. Its photodecomposition on irradiation has been reported to afford H2, CH4, C2H6 and polymeric products.
Synthesis
420 g (2.0 mol) of 2,4-dimethyl-3,5-bismethoxycarbonylpyrrole were suspended in 1200 g of 20% strength sodium hydroxide solution, and the mixture was heated. The solid gradually passed into solution during this process. At 92° C. gas had started to evolve vigorously; some of the dicarboxylic acid was decarboxylated in the process. The methanol formed during the hydrolysis was distilled off continuously until essentially only water was passing over. The mixture which remained was then neutralized with 250 g of 50% strength sulfuric acid (pH about 7.5) and heated to boiling at the reflux condenser with water separator. The 2,4-dimethylpyrrole separated out as a yellow upper phase over the course of a few hours. The aqueous phase was continuously recycled into the boiling mixture. A total of 152.5 g of organic phase was obtained. This comprised 8.1% of water, the remainder consisted of 99.1% of 2,4-dimethylpyrrole, determined as area percentages by gas chromatography using a flame ionization detector. This corresponded to 138.9 g of 2,4-dimethylpyrrole (73% of theory).
2,4-Dimethylpyrrole Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,4-Dimethylpyrrole manufacturers
- Product
- 2,4-Dimethylpyrrole 625-82-1
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-10-31
- Product
- 2,4-Dimethylpyrrole 625-82-1
- Price
- US $0.00/kgkg
- Min. Order
- 1kgkg
- Purity
- 0.99
- Supply Ability
- 1000kg
- Release date
- 2023-09-08
- Product
- 2,4-Dimethylpyrrole 625-82-1
- Price
- US $80.00-800.00/kg
- Min. Order
- 10kg
- Purity
- 0.99
- Supply Ability
- 20tons
- Release date
- 2023-10-31