Chemical Properties of 1H-Pyrrole-2,5-dione, 3-ethyl-4-methyl- (CAS 20189-42-8)

InChI

InChI=1S/C7H9NO2/c1-3-5-4(2)6(9)8-7(5)10/h3H2,1-2H3,(H,8,9,10)

InChI Key

CUBICSJJYOPOIA-UHFFFAOYSA-N

Formula

C7H9NO2

SMILES

CCC1=C(C)C(=O)NC1=O

Molecular Weight¹

139.15

CAS

20189-42-8

Other Names

• Maleimide, 2-ethyl-3-methyl-
• Ethylmethylmaleimide
• Methylethylmaleimide
• 2-Ethyl-3-methylmaleimide
• 3-Ethyl-4-methyl-1H-pyrrole-2,5-dione
• 3-Ethyl-4-methyl-2,5-pyrrolidine-dione
• 3-ethyl-4-methylmaleimide

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔfG°	-94.45	kJ/mol	Joback Calculated Property
ΔfH°gas	-309.74	kJ/mol	Joback Calculated Property
ΔfusH°	15.80	kJ/mol	Joback Calculated Property
ΔvapH°	48.61	kJ/mol	Joback Calculated Property
log10WS	-1.24		Crippen Calculated Property
logPoct/wat	0.369		Crippen Calculated Property
McVol	107.450	ml/mol	McGowan Calculated Property
Pc	4026.13	kPa	Joback Calculated Property
Inp	[1192.00; 1280.60]
Inp	1265.00		NIST
Inp	1234.80		NIST
Inp	Outlier 1192.00		NIST
Inp	1280.60		NIST
Inp	1238.00		NIST
Inp	1238.00		NIST
Inp	1239.00		NIST
Inp	1265.00		NIST
I	[2197.00; 2260.00]
I	2197.00		NIST
I	2260.00		NIST
I	2260.00		NIST
I	2244.00		NIST
I	2244.00		NIST
Tboil	572.82	K	Joback Calculated Property
Tc	814.55	K	Joback Calculated Property
Tfus	451.06	K	Joback Calculated Property
Vc	0.406	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[249.38; 316.51]	J/mol×K	[572.82; 814.55]
Cp,gas	249.38	J/mol×K	572.82	Joback Calculated Property
Cp,gas	261.98	J/mol×K	613.11	Joback Calculated Property
Cp,gas	274.10	J/mol×K	653.40	Joback Calculated Property
Cp,gas	285.68	J/mol×K	693.68	Joback Calculated Property
Cp,gas	296.65	J/mol×K	733.97	Joback Calculated Property
Cp,gas	306.95	J/mol×K	774.26	Joback Calculated Property
Cp,gas	316.51	J/mol×K	814.55	Joback Calculated Property

Similar Compounds

Find more compounds similar to 1H-Pyrrole-2,5-dione, 3-ethyl-4-methyl-.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.