491-18-9

Basic information

• Product Name: 4-Ethyl-2,3-dimethyl-1H-pyrrole
• Synonyms: 4-Ethyl-2,3-dimethyl-1H-pyrrole;Hemopyrrole
• CAS NO: 491-18-9
• Molecular Formula: C₈H₁₃N
• Molecular Weight: 123.2
• Mol File: 491-18-9.mol
• Article Data: 1

Chemical Properties

• Melting Point: 16.5°C
• Boiling Point: 175.67°C (estimate)
• Flash Point: 75.5°C
• Appearance: /
• Density: 0.9150
• Vapor Pressure: 0.441mmHg at 25°C
• Refractive Index: 1.4844 (estimate)
• CAS DataBase Reference: 4-Ethyl-2,3-dimethyl-1H-pyrrole(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Ethyl-2,3-dimethyl-1H-pyrrole(491-18-9)
• EPA Substance Registry System: 4-Ethyl-2,3-dimethyl-1H-pyrrole(491-18-9)

Safety Data

• Hazardous Substances Data: 491-18-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C8H13N/c1-4-8-5-9-7(3)6(8)2/h5,9H,4H2,1-3H3

Upstream product

• 448-71-5 ethioporphyrin I 
• 2199-45-3 4,5-dimethyl-pyrrole-2-carboxylic acid ethyl ester 
• 10034-85-2 hydrogen iodide 
• 64-19-7 acetic acid 
• 1263-63-4 mesoporphyrin IX DME 
• 26608-34-4 etioporphyrin III 
• 62222-14-4 meso-porphyrin-II-dimethyl ester 
• 2644-60-2 χ-phylloporphyrin-XV 

Downstream Products

• 97336-42-0 3-ethyl-4,5-dimethyl-pyrrole-2-carbaldehyde 
• 26608-34-4 Etioporphyrin III 
• 114155-53-2 1-bromo-3,8,13,17-tetraethyl-2,7,12,18,19-pentamethyl-5,15-biladienium dibromide 
• 124281-51-2 3,13-diethyl-1,2,7,8,12,17,18,19-octamethyl-10,23-dihydrobilin dihydrobromide 

Relevant articles and documents

Structurel Analysis of Tetrapyrroles by Hydrogen Chemical Ionization Mass Spectrometry

The H2 chemical ionization mass spectra of several standard porphyrins have been determined.Fragmentation proceeds via hydrogenation yielding porphyrinogens, followed by cleavage at the meso (bridge) positions to produce mono-, di-, and tripyrrolic ions.Secondary fragmentation by cleavage of substituent groups attached to the pyrrole rings may then occur.Identification of these fragments and the corresponding molecular ions produces considerable structural information on the parent molecule.In certain cases these data are sufficient to distinguish porphyrin type (positional) isomers.In addition information of substituents at meso positions may be retained.