pyrrole,2,5-dimethyl-

Name	2,5-dimethylpyrrole
Synonyms	BMPy Dimethylpyrrole 2,5-dimethyl-pyrrol 2,5-dimethylpyrrole 2,5-bimethylpyrrole pyrrole,2,5-dimethyl- Pyrrole, 2,5-dimethyl- 2,5-1H-dimethylpyrrole 2,5-dimethyl-1h-pyrrol 2,5-dimethyl-1h-pyrrole 2,5-Dimethyl Pyrrole (625-84-3)
CAS	625-84-3
EINECS	210-913-8
InChI	InChI=1/C6H9N/c1-5-3-4-6(2)7-5/h3-4,7H,1-2H3
InChIKey	PAPNRQCYSFBWDI-UHFFFAOYSA-N

Molecular Formula	C6H9N
Molar Mass	95.14
Density	0.935 g/mL at 25 °C (lit.)
Melting Point	6.5°C
Boling Point	165 °C/740 mmHg (lit.)
Flash Point	130°F
Water Solubility	Insoluble in water
Vapor Presure	44-490Pa at 20-50℃
Appearance	Crystalline Powder and/or Chunks
Specific Gravity	0.935
Color	Yellow to orange-yellow
pKa	18.46±0.50(Predicted)
Storage Condition	Keep in dark place,Sealed in dry,Room Temperature
Refractive Index	n20/D 1.505(lit.)
MDL	MFCD00005223
Physical and Chemical Properties	Colorless to yellowish oily liquid. There was strong irritation odor. Boiling point 165 °c. Miscible in ethanol and ether, very difficult to dissolve in water. Red resin can be formed in the air.
Use	Intermediates in organic synthesis.

Risk Codes	R10 - Flammable R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs	UN 1992 3/PG 3
WGK Germany	3
RTECS	UX9465930
HS Code	29339900
Hazard Class	3.2
Packing Group	III

Soluble in alcohol, ether, chloroform, soluble in water. Can volatilize with water vapor.

Last Update：2022-10-16 17:27:22

NIST chemical information	information provided by: webbook.nist.gov (external link)
content analysis	analysis was performed on a polar column in gas chromatography (GT-10-4).
Use	flavor. intermediates in organic synthesis. The product is used for the polymerization of ethylene to produce hexene-1
production method	heating 2, 5-hexanedione and ammonium carbonate together until the foaming phenomenon stops, it takes about 1-1.5H, the mixture was refluxed slowly for another half hour at 115 ° C., cooled, and the upper layer, 2, 5-dimethylpyrrole, was separated. The lower layer of the above reactant is extracted with chloroform, and a part of the product can be recovered. The crude product was distilled under reduced pressure, and fractions of 51-53 °c (1.07kPa) or 78-80 °c (3.33kPa) were collected to obtain the finished product. The yield was 81-86%. obtained by sealing an alcohol solution of acetone-based acetone and ammonia in a tube and heating. Derived from the interaction of magnesium pyrrole bromide and methyl iodide.

Last Update：2024-04-10 22:29:15

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