4,5-Dihydro-5-oxo-1H-pyrazole-3-carboxylic acid

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Names

[ CAS No. ]:
71173-77-8

[ Name ]:
4,5-Dihydro-5-oxo-1H-pyrazole-3-carboxylic acid

[Synonym ]:
Pyrazolon-3-carbonsaeure
5-Oxo-2-pyrazoline-3-carboxylic acid
1H-Pyrazole-3-carboxylic acid,4,5-dihydro-5-oxo
5-Oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid

Chemical & Physical Properties

[ Density]:
1.84g/cm3

[ Molecular Formula ]:
C4H4N2O3

[ Molecular Weight ]:
128.08600

[ Exact Mass ]:
128.02200

[ PSA ]:
78.76000

[ Index of Refraction ]:
1.708

Safety Information

[ HS Code ]:
2933199090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 1H-Pyrazole-3-carboxylicacid, 4,5-dihydro-5-oxo-, ethyl ester

DownStream

Customs

[ HS Code ]: 2933199090

[ Summary ]:
2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Related Compounds

  • 1-ETHYL-4,5-DIHYDRO-5-OXO-1H-PYRAZOLE-3-CARBOXYLIC ACID
  • 1-(2-chlorophenyl)-4,5-dihydro-5-oxo-1H-pyrazole-3-carboxylic acid
  • 1-(2,5-disulfophenyl)-4,5-dihydro-5-oxo-1h-pyrazole-3-carboxylic acid
  • 1-(2,5-disulphophenyl)-4,5-dihydro-5-oxo-1H-pyrazole-3-carboxylic acid
  • 1-(4-AMINO-2-SULFOPHENYL)-4,5-DIHYDRO-5-OXO-1H-PYRAZOLE-3-CARBOXYLIC ACID
  • 1-(5-AMINO-2-METHYL-3-SULFOPHENYL)-4,5-DIHYDRO-5-OXO-1H-PYRAZOLE-3-CARBOXYLIC ACID