Pyrrole
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Post Date:
Oct 11,2018
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Expiry Date:
Oct 11,2019
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Detailed Description:
Cas No. :109-97-7
Payment Method: T/T D/A D/P L/C
Pyrrole
High Quality
Earliest shipment
Competitive price
Professional Service
Pyrrole
High Quality
Earliest shipment
Competitive price
Professional Service
Pyrrole is a heterocyclic aromatic organic compound, a five-membered ring with the formula C4H4NH.[1] It is a colourless volatile liquid that darkens readily upon exposure to air. Substituted derivatives are also called pyrroles, e.g., N-methylpyrrole, C4H4NCH3. Porphobilinogen, a trisubstituted pyrrole, is the biosynthetic precursor to many natural products such as heme.[2]
Pyrroles are components of more complex macrocycles, including the porphyrins of heme, the chlorins, bacteriochlorins, chlorophyll, porphyrinogens.[3]
Pyrrole
IUPAC name[hide]
1H-Pyrrole
Identifiers
CAS number 109-97-7 Y
PubChem 8027
ChemSpider 7736 Y
UNII 86S1ZD6L2C Y
EC number 203-724-7
UN number 1992, 1993
ChEBI CHEBI:19203 Y
ChEMBL CHEMBL16225 Y
RTECS number UX9275000
Beilstein Reference 1159
Gmelin Reference 1705
Jmol-3D images Image 1
Image 2
SMILES
[show]
N1C=CC=C1
c1cc[nH]c1
InChI
[show]
InChI=1S/C4H5N/c1-2-4-5-3-1/h1-5H Y
Key: KAESVJOAVNADME-UHFFFAOYSA-N Y
InChI=1/C4H5N/c1-2-4-5-3-1/h1-5H
Properties
Molecular formula C4H5N
Molar mass 67.09 g mol−1
Exact mass 67.042199165 g mol-1
Density 0.967 g cm-3
Melting point
−23 °C, 250 K, -9 °F
Boiling point
129-131 °C, 402-404 K, 264-268 °F
Vapor pressure 7 mmHg at 23 °C
Viscosity 0.001225 Pa s
Thermochemistry
Std enthalpy of
formation ΔfHo298 108.2 kJ mol-1 (gas)
Std enthalpy of
combustion ΔcHo298 2242 kJ mol-1
Specific heat capacity, C 1.903 J k-1 mol k-1
Hazards
NFPA 704
2
2
0
Flash point 33.33 °C
Autoignition
temperature 550 °C
Explosive limits 3.1-14.8%
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CAS Registry Number:
109-97-7
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Synonyms:
;1H-Pyrrole;1-Aza-2,4-cyclopentadiene;AI3-18817;Azole;CCRIS 2933;Divinyleneimine;Divinylenimine;FEMA No. 3386;HSDB 119;Imidole;Monopyrrole;NSC 62777;Pyrrol;UNII-86S1ZD6L2C;
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Molecular Formula:
C4H5N
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Molecular Weight:
67.09
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Molecular Structure:
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Hazard Symbols:
T:Toxic;
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Risk Codes:
R10:;
R20:;
R25:;
R41:;
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Safety Description:
S16:;
S24:;
S26:;
S39:;
S45:;
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