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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 L-Glutamicacid

  • Standard: AJI92 Items Specifications Appearance White crystalline powder State of solution (Transmittance) Clear and colorless not less than 98.0% Specific optical rotation +31.5o ~ +32.5o Assay ,% min 99.0 ~ 100.5 Loss on drying,% max 0.2 Heavy meta...
  • China Shijiazhuang Haitian Amino Acid Co., Ltd. [Manufacturer, Trading Company]
  • Tel: 86-311-88908111
  • Address: East of the Road 150m of Shi-Huang Freeway Entrance, Gaocheng District, Shijiazhuang City, Hebei P.R. China Shijiazhuang,HebeiChina
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98-79-3 L-Pyroglutamic Acid

  • Product Name: L-Pyroglutamic Acid Cas No.: 98-79-3 supplier: premium ingredient co.,ltd Appearance: White crystalline powder Quality Standard: enterprise standard Specific rotation -11.0o to -12.0o Melting point 158oC to 161 oC chloride Not more than...
  • China Premium Ingredient Co.,Ltd [Manufacturer, Trading Company]
  • Tel: 86-510-86995770
  • Fax: 86-510-86993298
  • Address: Shanguan Jiangyin,JiangsuChina
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98-79-3 L-Pyroglutamic acid

  • Name: L-Pyroglutamic acid Synonyms: 5-Oxoproline; 5-Oxopyrrolidine-2-carboxylic acid; L-5-Pyrrolidone-2-carboxylic acid; (S)-(-)-2-Pyrrolidone-5-carboxylic acid Molecular Formula: C5H7NO3 Molecular Weight: 129.11 CAS Registry Number: 98-79-3 EINECS: ...
  • China Daxinganling International Import & Export Co., Ltd. [Manufacturer]
  • Tel: 86-452-6197119
  • Address: 5F, C Liandalijing Bulding,No 259 Xinjiang Road, Jianhua District qiqihar,HeilongjiangChina
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98-79-3 L-Pyroglutamic Acid

  • Product Name: L-Pyroglutamic Acid CAS NO.: 98-79-3 Molecular Formula: C5H7NO3 Molecular Weight: 129.11 Properties: white crystal or crystalline powder; almost odorless Use: Used for food, medical and cosmetic industries. Packing: 25KG fiber drum, or ...
  • China DaXingAnLing Zhongbei Northland Bio-Chem Industry [Manufacturer]
  • Tel: 86-452-6197119
  • Fax: --
  • Address: 5F, C Liandalijing Bulding,No 259 Xinjiang qiqihar,HeilongjiangChina
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98-79-3 L-Pyroglutamic acid

  • Name L-Pyroglutamic acid CAS 98-79-3 molecular formula C5H7NO3 molecular weight 129.11 Categories Vitamin and amino acid Quality standard company standard Stability Stable. Incompatible with bases, acids, strong oxidizing agents. HS Code 29337900 Pac...
  • Min. Order: 100
  • FOB Price: USDfalse - false /
  • China Wuhan Yuancheng Tech. Development Co.,Ltd. [Manufacturer]
  • Tel: 86-27-50756018
  • Fax: 86-27-88048077
  • Address: 496# Zhongshanroad Wuhan,Hubei wuhan,HubeiChina

98-79-3 L-Pyroglutamic acid 98-79-3

  • Appearance White crystalline powder Specific rotation(a)D20 (C=5 H2O) -11.0 to -12.0 Chloride(C1) Not more than 0.02% Ammonium(NH4) Not more than 0.02% Sulfate(SO4) Not more than 0.02% Heavy metals(Pb) Not more than 10ppm Iron(Fe) Not more than 10ppm...
  • China Sichuan Tongsheng Biotechnology Co.,Ltd [Manufacturer]
  • Tel: 86-838-2504166
  • Fax: 86-838-2274207
  • Address: Tianyuan Development Zones Deyang,SichuanChina
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • China Taiyuan RHF CO., ltd. [Manufacturers]
  • Tel: 0351-7436719
  • Fax: +86-351-7436719
  • Address: Shuangta South Alley 46,2-1, YingZe Area,Taiyuan, ShanXi ,ShanXiChina
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98-79-3 (S)-(-)-2-PYRROLIDINONE-5-CARBOXYLIC ACID; 98%

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany ,Germany
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98-79-3 (S)-(-)-2-Pyrrolidone-5-carboxylic acid

  • United States HBCChem, Inc. [Manufacturers]
  • Tel: +1-510-219-6317
  • Fax: +1-510-675-0318
  • Address: Union City,CaliforniaUnited States
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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 ,China
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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.