ChemicalBook > CAS DataBase List > 2,4-Dimethylpyrrole

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
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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)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36-37/39
WGK Germany 
3
HS Code 
29339900
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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.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
390836
Product name
2,4-Dimethylpyrrole
Purity
97%
Packaging
1g
Price
$60.4
Updated
2024/03/01
Sigma-Aldrich
Product number
390836
Product name
2,4-Dimethylpyrrole
Purity
97%
Packaging
5g
Price
$156
Updated
2024/03/01
TCI Chemical
Product number
D2848
Product name
2,4-Dimethylpyrrole
Purity
>98.0%(GC)
Packaging
1g
Price
$37
Updated
2024/03/01
TCI Chemical
Product number
D2848
Product name
2,4-Dimethylpyrrole
Purity
>98.0%(GC)
Packaging
5g
Price
$106
Updated
2024/03/01
TCI Chemical
Product number
D2848
Product name
2,4-Dimethylpyrrole
Purity
>98.0%(GC)
Packaging
25g
Price
$396
Updated
2024/03/01
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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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2,4-Dimethylpyrrole Suppliers

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View Lastest Price from 2,4-Dimethylpyrrole manufacturers

Hebei Weibang Biotechnology Co., Ltd
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
Hebei Yanxi Chemical Co., Ltd.
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
Zibo Hangyu Biotechnology Development Co., Ltd
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

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