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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 Syntechem Co.,Ltd [Manufacturer]
  • Tel: +86-519-89882658
  • Fax: +86-519-8512 5369
  • Address: Syntechem Co.,Ltd
    18 South Zhulin Rd.
    Tianning district,Changzhou
    Jiangsu China 213022 null,nullChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

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98-79-3 L-pyro glutamic acid

  • China Shanghai Hanhong Chemical Co., Ltd. [Manufacturer, Trading Company, Agent]
  • Tel: +86-(21)-64762736, 64531573
  • Fax: +86-(21)-54291107
  • Address: 206-209, NO.1 Building , NO.245,Jiachuan Road, Xuhui District, Shanghai, Xuhui District,ShanghaiChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China Fast Pharm Co.,Ltd [Manufacturers]
  • Tel: 8602133538380
  • Fax: 86-021-32082820
  • Address: No.17#-6D. 830 Lane,Maotai Road Shanghai,SH200336,China Shanghai,ShanghaiChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China BINHAI HANHONG BIOCHEMICAL CO., LTD. [Manufacturers]
  • Tel: +86-21-54302127
  • Fax: +86-21-54291107
  • Address: Room 209,Zonghe Building ,Jiachuan Road 245, Xuhui District, Shanghai, China Shanghai,ShanghaiChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China SHANGHAI HANHONG CHEMICAL CO.,LTD. [Manufacturers]
  • Tel: 021-64545202
  • Fax: 021-54291107
  • Address: Room 207, Zenghe Building , No.245, Jiachuan Road, Xuhui District, Shanghai, China shanghai,shanghaiChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China YiPeng Chemical [Manufacturers]
  • Tel: 571 85376369
  • Fax: 571 88233092
  • Address: Building 4,High-tech Industrial Park,No. 588 Feijiatang Road,Xiacheng District, Hangzhou, China null,ZheJiangChina
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98-79-3 L-Pyroglutamic Acid

  • China Ningbo Inno Pharmchem Co., Ltd. [Manufacturers]
  • Tel: +86-(574)-87319282
  • Fax: +86-(574)-56877908
  • Address: 5F, Building 4, 1035 Guangxian Rd., Ningbo Hi-Tech Park, Ningbo, Zhejiang 315040, Ningbo,ZhejiangChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China Boronsyn Co.,Ltd [Manufacturer]
  • Tel: +86-21-58407925
  • Fax: +86-21-58408291
  • Address: 1213 JunMin Road,Pudong,China null,nullChina
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98-79-3 L-Pyroglutamic Acid

  • China Shanghai Fchemicals Technology Co., Ltd. [Manufacturers]
  • Tel: +86-(21)-36030322
  • Fax: +86-(21)-66315383
  • Address: Room524,Hua-Rui Mansion No.18 Jiang Chang Yi Road, Shanghai 200436, Shanghai,ShanghaiChina
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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.