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CAS No 98-97-5 , pyrazine-2-carboxylic acid

  • Name: pyrazine-2-carboxylic acid
  • Synonyms: pyrazine-2-carboxylic acid; Pyrazinic acid;Pyrazine-2-carboxylic acid; 2-Carboxypyrazine; 98-97-5; pyrazinecarboxylic acid; 2-Pyrazinecarboxylic acid;
  • CAS Registry Number:
  • Melting Point: 222-225 ºC
  • Density: 1.403g/cm3
  • Refractive index: 1.578
  • Safety Statements: 11-34,
  • Hazard Symbols: Xi,C,F:;
  • HS Code: 29339990
  • EINECS: 202-718-1
  • Molecular Weight: 124.09746
  • InchiKey: NIPZZXUFJPQHNH-UHFFFAOYSA-N
  • InChI: InChI=1S/C5H4N2O2/c8-5(9)4-3-6-1-2-7-4/h1-3H,(H,8,9)
  • Risk Statements: S24/25
  • Molecular Formula: C5H4N2O2
  • Molecular Structure:CAS No:98-97-5 pyrazine-2-carboxylic acid
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98-97-5 PYRAZINE-2-CARBOXYLIC ACID; 99%

  • 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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98-97-5 2-Pyrazinecarboxylic acid

  • CAS No. 98-97-5 Name 2-Pyrazinecarboxylic acid Molecular Formula C5H4N2O2 Specification 98%(HPLC)
  • China Beijing Haili Huakang Chem Co. Ltd. [Manufacturer]
  • Tel: 86-10-53360683
  • Fax: 86-10-53360684
  • Address: No.9, Chaoqian Road, Keji Yuan, Changping District, Beijing, China Beijing,BeijingChina
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98-97-5 PYRAZINECARBOXYLIC ACID

  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany ,Germany
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98-97-5 2-Pyrazine Carboxylic Acid

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98-97-5 2-Pyrazine Carboxylic Acid

  • China Goly Chemical Co., Ltd. [Manufacturers]
  • Tel: +86-(632)-6163187
  • Fax: +86-(632)-5100028
  • Address: Room No.6.Building21 LongXingBeiLi,ShiZhong, ZaoZhua, ShanDong 277102, ZaoZhuang,ShanDongChina
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98-97-5 2-Pyrazine Carboxylic Acid

  • China Jinan Haohua Industry Co., Ltd. [, Manufacturer]
  • Tel: +86-531-55569255
  • Fax: +86-531-55569299
  • Address: 40 Huayuan Rd, Jinan, Shandong 250100, jinan,shandongChina
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98-97-5 2-Pyrazine Carboxylic Acid

  • United States Aceto Corporation [Importer/Exporter]
  • Tel: +1-(516)-627-6000
  • Fax: +1-(516)-627-6093
  • Address: One Hallow Lane, Lake Success, New York 11042-1215, ,United States
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98-97-5 2-Pyrazinecarboxylic acid

  • China Vesino Industrial Co., Ltd. [Manufacturers]
  • Tel: +86-(22)-8128-9555
  • Fax: +86-(22)-2746-6330
  • Address: No.4 Xinglanyuan Building, Changjiang Road, Tianjin 300193, Tianjin,TianjinChina
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98-97-5 2-PYRAZINE CARBOXYLIC ACID

  • United States Aceto Corp. [Manufacturer]
  • Tel: 516-627-6000
  • Fax: 516-627-6093
  • Address: One Hollow Lane
    Lake Success, NY 11042-1215 ,United States
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98-97-5 PYRAZINOIC ACID-D3

  • India VARDA Biotech (P) Ltd. [Manufacturer]
  • Tel: +91-22-6693 5686 / 2673 0141 / 2673 4258
  • Fax: +91-22-6693 5687
  • Address: 110 & 111, Kartik Complex
    New link Road, Andheri-(W)
    Mumbai-400053, INDIA. ,India
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References of pyrazine-2-carboxylic acid
Title: Pyrazinoic Acid
CAS Registry Number: 98-97-5
CAS Name: Pyrazinecarboxylic acid
Synonyms: pyrazinemonocarboxylic acid
Molecular Formula: C5H4N2O2
Molecular Weight: 124.10
Percent Composition: C 48.39%, H 3.25%, N 22.57%, O 25.78%
Literature References: Prepn by thermal decompn of 2,3-pyrazinedicarboxylic acid: Hall, Spoerri, J. Am. Chem. Soc. 62, 664 (1940); by oxidation of alkylpyrazines: Gainer, J. Org. Chem. 24, 691 (1959).
Properties: Fine white needles from water, dec 225-229°. Sublimes. pK (25°) 2.92. Slightly sol in cold water, more sol in hot water. One gram dissolves in 120 g abs ethanol at 25°. Practically insol in ether, chloroform, benzene.
pKa: pK (25°) 2.92
 
Derivative Type: Methyl ester
Properties: Crystals from ether, mp 59°.
Melting point: mp 59°
 
Derivative Type: Amide see Pyrazinamide