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L-Pyroglutamic Acid Ethyl Ester

CAS: 7149-65-7 | C7H11NO3

2D Structure

3D Structure

Loading 3D structure...

Basic Information

CAS Registry Number: 7149-65-7
Molecular Formula: C7H11NO3
Molecular Mass: 157.17 g/mol

Names and Synonyms:

L-Pyroglutamic Acid Ethyl Ester
L-Proline, 5-oxo-, ethyl ester
Proline, 5-oxo-, ethyl ester, L-
Ethyl pyroglutamate
Ethyl L-pyroglutamate
L-2-Ethoxycarbonyl-5-pyrrolidone
Ethyl L-2-oxo-5-pyrrolidinecarboxylate
Ethyl L-2-pyrrolidone-5-carboxylate
L-Pyroglutamic acid ethyl ester
Ethyl (S)-pyroglutamate
Pyroglutamic acid ethyl ester
NSC 166529
NSC 72279
Ethyl (2S)-5-oxopyrrolidine-2-carboxylate
(S)-(+)-Ethyl 2-pyrrolidone-5-carboxylate
Ethyl 5-oxo-L-prolinate
(2S)-5-Oxopyrrolidine-2-carboxylic acid ethyl ester
Ethyl L-pyroglutamate
(S)-Ethyl 5-oxopyrrolidine-2-carboxylate

Identifiers:

SMILES:
CCOC(=O)[C@@H]1CCC(O)=N1
InChI:
InChI=1S/C7H11NO3/c1-2-11-7(10)5-3-4-6(9)8-5/h5H,2-4H2,1H3,(H,8,9)/t5-/m0/s1

Key Properties

Boiling Point
140-145 °C @ Press: 1 Torr CAS Common Chemistry
Melting Point
55 °C CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 157.17 g/mol CAS Common Chemistry
157.169 g/mol RDKit
157.073893212 g/mol RDKit
Boiling Point 140-145 °C @ Press: 1 Torr CAS Common Chemistry
Canonical SMILES O=C1NC(C(=O)OCC)CC1 CAS Common Chemistry
InChI InChI=1S/C7H11NO3/c1-2-11-7(10)5-3-4-6(9)8-5/h5H,2-4H2,1H3,(H,8,9)/t5-/m0/s1 CAS Common Chemistry
InChI Key InChIKey=QYJOOVQLTTVTJY-YFKPBYRVSA-N CAS Common Chemistry
Melting Point 55 °C CAS Common Chemistry
Name L-Pyroglutamic acid ethyl ester CAS Common Chemistry
Heavy Atom Count 11 RDKit
Hydrogen Bond Acceptors 3 RDKit
Hydrogen Bond Donors 1 RDKit
Rotatable Bonds 2 RDKit
Aromatic Ring Count 0 RDKit
Topological Polar Surface Area 58.89 Ų RDKit
LogP 0.6683999999999999 RDKit
Molar Refractivity 39.7188 RDKit

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