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CAS No 98-79-3 , (2S)-5-oxopyrrolidine-2-carboxylic acid

  • Name: (2S)-5-oxopyrrolidine-2-carboxylic acid
  • Synonyms: L-Pyroglutamic acid; Pyrrolidonecarboxylic acid; (S)-(-)-2-Pyrrolidone-5-carboxylic acid; 98-79-3; 5-oxo-L-proline; Pyroglutamic acid;(2S)-5-oxopyrrolidine-2-carboxylic acid; Pidolic acid;
  • CAS Registry Number:
  • Melting Point: 152-162 ºC
  • Density: 1.38 g/cm3
  • Refractive index: -10 ° (C=5, H2O)
  • Alpha: -27.5 º (C=10, 1 N NAOH)
  • Water Solubility: 10-15 G/100 ML (20 ºC)
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29337900
  • EINECS: 202-700-3
  • Molecular Weight: 129.11398
  • InchiKey: ODHCTXKNWHHXJC-VKHMYHEASA-N
  • InChI: InChI=1S/C5H7NO3/c7-4-2-1-3(6-4)5(8)9/h3H,1-2H2,(H,6,7)(H,8,9)/t3-/m0/s1
  • Risk Statements: S26;S36
  • Molecular Formula: C5H7NO3
  • Molecular Structure:CAS No:98-79-3 (2S)-5-oxopyrrolidine-2-carboxylic acid
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China SICHUAN TONGSHENG AMINOACID CO.LTD [Manufacturers]
  • Tel: 0086-838-2274206
  • Fax: 0086-838-2274207
  • Address: Room 1-11-1,No.19 of North TianShan Road,Deyang,Sichuan China deyang,sichuanChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China Varsal, Inc [Importer/Exporter]
  • Tel: 215-957-5880-16
  • Fax: (215) 957-9111
  • Address: 363 Ivyland Road Warminster, PA 18974 USA Warminster,WarminsterChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • United States Norse Laboratories, Inc. [Importer/Exporter]
  • Tel: (805) 375-3113
  • Fax: 805 375 0812
  • Address: POB 976, Newbury Park, California (CA), 91319, USA Newbury Park,CaliforniaUnited States
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • India Leonid Chemicals Pvt. Ltd. null
  • Tel: +91-(80)-23378354/23377126
  • Fax: +91-(80)-23378354/23377126
  • Address: 62/A-2, 1st Stage,Yeshwanthpur Industrial Suburb, Ashokpuram School Road, Bangalore, Karnataka 560022, null,nullIndia
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China Tianjin Kermel Chemical Reagent Co., Ltd [Manufacturers]
  • Tel: 0086-22-28545255,28545251,28545252, 28545253
  • Fax: 0086-22-28545261,28545262
  • Address: No.11 Xingyuan Road, Xianshuigu Industry, Tianjin City, 300350 Tianjin,TianjinChina
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98-79-3 L-Pyroglutamic Acid

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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

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98-79-3 L-Pyroglutamic acid

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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

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References of (2S)-5-oxopyrrolidine-2-carboxylic acid
Title: L-Pyroglutamic Acid
CAS Registry Number: 98-79-3
CAS Name: 5-Oxo-L-proline
Synonyms: 5-oxo-2-pyrrolidinecarboxylic acid; 2-pyrrolidone-5-carboxylic acid; glutimic acid; glutiminic acid; a-aminoglutaric acid lactam; glutamic acid lactam; pyroGlu
Molecular Formula: C5H7NO3
Molecular Weight: 129.11
Percent Composition: C 46.51%, H 5.46%, N 10.85%, O 37.18%
Literature References: Cyclized internal amide of L-glutamic acid found in vegetables, fruits, grasses, and molasses. Easily prepd from L-glutamic acid by autoclaving with an equal wt of water at 135-140°: Dearborn, Stekol, US 2528267; purification: Blish, US 2738353 (1950, 1956, both to International Minerals and Chem.). Review: Orlowski, Meister, in The Enzymes vol. 4, P. D. Boyer, Ed. (Academic Press, New York, 3rd ed., 1971) pp 123-151; C. Moret, M. Briley, Trends Pharmacol. Sci. 9, 278-279 (1988).
Properties: Orthorhombic bisphenoidal crystals from alcohol + petr ether. mp 162-163°. [a]D20 -11.9° (c = 2); [a]D25 -23.6° (c = 5 at pH 7). Sol in water, alcohol, acetone.
Melting point: mp 162-163°
Optical Rotation: [a]D20 -11.9° (c = 2); [a]D25 -23.6° (c = 5 at pH 7)
Use: In the resolution of racemic amines.