Cas no 1048937-93-4 (4-iodo-1H-pyrazole-5-carboxylic acid)

4-Iodo-1H-pyrazole-5-carboxylic acid is a heterocyclic compound featuring a pyrazole core substituted with an iodine atom at the 4-position and a carboxylic acid group at the 5-position. This structure makes it a versatile intermediate in organic synthesis, particularly for constructing more complex heterocyclic systems or functionalized pyrazole derivatives. The iodine substituent offers reactivity for cross-coupling reactions, such as Suzuki or Sonogashira couplings, while the carboxylic acid group enables further derivatization via esterification or amidation. Its high purity and well-defined structure make it suitable for pharmaceutical and agrochemical research, where precise molecular modifications are critical. The compound’s stability under standard handling conditions ensures reliable performance in synthetic applications.
4-iodo-1H-pyrazole-5-carboxylic acid structure
1048937-93-4 structure
Product Name:4-iodo-1H-pyrazole-5-carboxylic acid
CAS No:1048937-93-4
MF:C4H3IN2O2
MW:237.983292818069
CID:5250270
PubChem ID:1205612
Update Time:2026-03-09

4-iodo-1H-pyrazole-5-carboxylic acid Chemical and Physical Properties

Names and Identifiers

    • 4-iodo-1H-pyrazole-5-carboxylic acid
    • 4-iodo-1H-pyrazole-3-carboxylic acid
    • 4-iodo-pyrazole-3-carboxylic acid
    • 4-Iodo-2H-pyrazole-3-carboxylic acid
    • 4-iodopyrazole-3-carboxylic acid
    • 1H-Pyrazole-3-carboxylic acid, 4-iodo-
    • 4-iodopyrazolecarboxylic
    • 4-iodo-1H-pyrazole-3-carboxylicacid
    • BBL016065
    • STK315323
    • 4-iodo-1 h-pyrazole-3-carboxylic
    • SCHEMBL649146
    • DS-2014
    • Z275141186
    • 1048937-93-4
    • G71020
    • AKOS000672320
    • DTXSID10360965
    • AKOS000308091
    • DB-073763
    • EN300-83538
    • 6647-93-4
    • SY062855
    • CS-0018758
    • SR-01000399526-1
    • SCHEMBL15850527
    • AG-690/36538047
    • MFCD00465280
    • 4-iodo-1 h-pyrazole-3-carboxylic acid
    • MFCD01459883
    • ALBB-003732
    • SR-01000399526
    • Inchi: 1S/C4H3IN2O2/c5-2-1-6-7-3(2)4(8)9/h1H,(H,6,7)(H,8,9)
    • InChI Key: KFFNKBDXYFKEDO-UHFFFAOYSA-N
    • SMILES: IC1C=NNC=1C(=O)O

Computed Properties

  • Exact Mass: 237.92392g/mol
  • Monoisotopic Mass: 237.92392g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 2
  • Hydrogen Bond Acceptor Count: 3
  • Heavy Atom Count: 9
  • Rotatable Bond Count: 1
  • Complexity: 130
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 0.7
  • Topological Polar Surface Area: 66

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