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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 2-PYRAZINECARBOXYLIC ACID

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98-97-5 CHH10600 2-PYRAZINECARBOXYLIC ACID

  • China Chemik Co., Ltd. [Manufacturer]
  • Tel: +86-574-87296330 87298855
  • Fax: +86-574-87297461
  • Address: Chemik Co., Ltd.
    Room 2-225,55 Yunshi Street
    Ningbo 315010, China null,nullChina
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98-97-5 2-Pyrazinecarboxylic acid

  • China Harlan China [Importer/Exporter]
  • Tel: +86-512-69363203
  • Address: Biobay, SIP China null,nullChina
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98-97-5 PYRAZINOIC ACID

  • Canada General Intermediates of Canada, Inc. [Manufacturer]
  • Tel: 780-483-2783
  • Fax: 780-483-2971
  • Address: General Intermediates of Canada, Inc.
    17303 - 108 Avenue
    Edmonton, Alberta
    CANADA T5S 1G2 null,nullCanada
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98-97-5 Pyrazine-2-carboxylic acid

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98-97-5 2-Pyrazinecarboxylic acid

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98-97-5 PYRAZINE-2-CARBOXYLIC ACID

  • Germany Activate Scientific GmbH [Manufacturer]
  • Tel: +49-8051-9651660
  • Fax: +49-8051-9651661
  • Address: Activate Scientific GmbH
    Am Reitbach 7
    D-83209 Prien
    Germany null,nullGermany
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98-97-5 2-Pyrazinecarboxylic acid

  • China HUNAN OUYA BIOLOGICAL CO.,LTD [Manufacturers]
  • Tel: +86-592-5789919
  • Fax: +86-592-5637388
  • Address: Changsha National Biomedical Industrial Base Changsha,HunanChina
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98-97-5 PYRAZINECARBOXYLIC ACID

  • United States Austin Chemical Company, Inc. [Manufacturer]
  • Tel: 847-520-9600
  • Fax: 847-520-9160
  • Address: Austin Chemical Company, Inc.
    1565 Barclay Boulevard
    Buffalo Grove, IL 60089 USA null,nullUnited States
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98-97-5 Pyrazine-2-carboxylic acid

  • China Nantong Baihua Bio-Pharmaceutical Co.,Ltd [Manufacturer]
  • Tel: +86-513-85982855
  • Fax: +86-513-85982985
  • Address: Room 510, No. 52, Zhongyang Road, Economic&Technological Development Area,
    Nantong, Jiangsu, P.R.China
    Post Code: 226009 null,nullChina
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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