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Detail of "1621-91-6"

  • CAS Number:
  • 1621-91-6
  • Name:

  • 1H-Pyrazole-3-carboxylicacid

  • Superlist Name:
  • 5-Pyrazolecarboxylic acid
  • Molecular Structure:
  • Formula:
  • C4H4N2O2
  • Molecular Weight:
  • 112.09
  • Synonyms:
  • Pyrazole-3-carboxylic acid (8CI);1H-Pyrazole-5-carboxylic acid;Pyrazole-3(5)-carboxylic acid;Pyrazole-3-carboxylic acid;1H-pyrazole-3-carboxylic acid;
  • Density:
  • 1.524 g/cm3
  • Melting Point:
  • 211 °C
  • Boiling Point:
  • 417.1 °C at 760 mmHg
  • Flash Point:
  • 206.1 °C
  • Hazard Symbols:
  • IrritantXi
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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

Appearance: pale white crystal powder Content: 98.5% min. Melting Point: 210℃-212℃ Moisture: ≤0.5% Package: 25KG/ Fibre Drum

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

PYRAZOLE-3-CARBOXYLIC ACID

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

Pyrazole-3-carboxylic acid

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

1H-PYRAZOLE-3-CARBOXYLIC ACID

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CAS No.1621-91-6 5-Pyrazolecarboxylic acid

5kg+

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Reference

Studies on the reactions of cyclic oxalyl compounds with hydrazines or hydrazones: Synthesis and reactions of 4-benzoyl-1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid
Studies on the reactions of cyclic oxalyl compounds with hydrazines or hydrazones: Synthesis and reactions of 4-benzoyl-1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid. Sener, Ahmet; Kasimogullari, Rahmi; Sener, M. Kasim; Bildirici, Ishak; Akcamur, Yunus (Art and Science Faculty, Chemistry Department, Yil University, Van 65080, Turk.). Journal of Heterocyclic Chemistry, 39(5), 869-875 (English) 2002 HeteroCorporation. CODEN: JHTCAD. ISSN: 0022-152X. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 27 4-Benzoyl-1-(3-nitrophenyl)-5-phenyl-1H-Pyrazole-3-carboxylic acid (I), obtained from the 4-benzoyl-5-phenyl-2,3-furandione and N-benzylidene-N'-(3-nitrophenyl)hydrazine, was converted via reactions of its acid chloride with various alcs. or N-nucleophiles into the corresponding ester or amide derivs. 62-53-3 which is the cas registry number of one of substances is just one of reagents here. A nitrile and anilino-pyrazole acid derivs. of I were also prepd. and redn. of I with sodium polysulfide was reported. While cyclocondensation reactions of I with ph hydrazine or hydrazine hydrate and 4-benzoyl-1-(3-nitrophenyl)-5-phenyl-1H-Pyrazole-3-carbonitrile with only anhyd. hydrazine lead to derivs. of pyrazolo[3,4-d]-pyridazinone and pyrazolo[3,4-d]pyridazine amine, resp. The reaction of I with 2-hydrazinopyridine provided a hydrazono-pyrazole acid deriv., which was decarboxylated. Pyrazolo[4,3-d]oxazinone and 2-quinolyl pyrazolo[3,4-d]pyridazine derivs. were also prepd. by cyclocondensation reactions of I. .
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