Description

1H-Imidazole-4-carbaldehyde (CAS No. 3034-50-2) is a high-purity heterocyclic aldehyde with the molecular formula C₄H₄N₂O. This compound serves as a versatile building block in organic synthesis, particularly in the development of pharmaceuticals, agrochemicals, and specialty chemicals. Its imidazole core and reactive aldehyde group make it ideal for nucleophilic additions, condensations, and as a precursor for heterocyclic scaffolds. Our product is rigorously tested to ensure ≥98% purity (HPLC/GC), with trace metal analysis meeting research-grade standards. Supplied as a white to off-white crystalline powder, it is packaged under inert gas to maintain stability and shipped with a comprehensive Certificate of Analysis (CoA). Suitable for medicinal chemistry, combinatorial libraries, and material science applications.

Properties

• CAS Number: 3034-50-2
• Complexity: 74.1
• IUPAC Name: 1H-imidazole-5-carbaldehyde
• InChI: InChI=1S/C4H4N2O/c7-2-4-1-5-3-6-4/h1-3H,(H,5,6)
• InChI Key: ZQEXIXXJFSQPNA-UHFFFAOYSA-N
• Exact Mass: 96.032362755
• Molecular Formula: C4H4N2O
• Molecular Weight: 96.09
• SMILES: C1=C(NC=N1)C=O
• Topological: 45.8
• Monoisotopic Mass: 96.032362755
• Synonyms: 1H-Imidazole-4-carbaldehyde, 1H-imidazole-5-carbaldehyde, 4-Formylimidazole, 1H-IMIDAZOLE-5-CARBOXALDEHYDE, 5-Imidazolecarboxaldehyde, DWG32KT6XA, EINECS 221-227-3, NSC-400521, 3h-imidazole-4-carboxaldehyde, DTXSID70184427, NSC 400521, DTXCID80106918, 221-227-3, 3034-50-2, 4-Imidazolecarboxaldehyde, Imidazole-4-carbaldehyde, Imidazole-4-carboxaldehyde, 1H-Imidazole-4-carboxaldehyde, 3H-imidazole-4-carbaldehyde, imidazole-5-carbaldehyde, 4-imidazole-carboxaldehyde, MFCD00173726, 4-formyl imidazole, NSC400521, UNII-DWG32KT6XA, 4-imidazole carboxaldehyde, Imidazole 4-carboxaldehyde, 1H-4-imidazolecarbaldehyde, 1H-imidazol-4-carbaldehyde, imidazole, 4(5)-formyl-, 4-Formylimidazole (4(5)-Imidazolecarboxaldehyde), SCHEMBL66649, 1H-imidazole-4-carboaldehyde, 3H-imidazole-4-carboaldehyde, SCHEMBL193416, SCHEMBL193417, SCHEMBL440039, BDBM7954, SCHEMBL6825573, 1-H-imidazole-4-carboxaldehyde, 1H-Imidazole-4-carbaldehyde #, Imidazole C-4(5) deriv. 6, Imidazole-4(1H)-carboxaldehyde, 4-Imidazolecarboxaldehyde, 98%, SCHEMBL10456806, SCHEMBL21407210, BCP04813, CS-D1058, STR03870, AC-884, BBL029981, SBB004381, STL146912, AKOS005746985, AKOS007930854, AS-2007, FI15352, PB14141, PS-9348, BP-12470, HY-59303, ST056378, SY003074, DB-000671, I0636, NS00028903, EN300-50613, AB-131/25126048, AG-687/20225014, F0001-0932

1H-Imidazole-4-carbaldehyde is widely used as a key intermediate in the synthesis of bioactive molecules, including kinase inhibitors and antimicrobial agents. It serves as a precursor for imidazole-based ligands in coordination chemistry and catalysts. Researchers utilize this compound in click chemistry reactions and as a building block for fluorescent probes due to its heteroaromatic reactivity. Its aldehyde functionality enables facile conjugation with amines or hydrazines for bioconjugation applications.

Safety and Hazards

GHS Hazard Statements

• H315 (98%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (98%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (96%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (98%)
• Eye Irrit. 2 (98%)
• STOT SE 3 (96%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.