1-Iodo-4-methylbenzene, CAS No. 624-31-7

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624-31-7

Catalog No. EBD13911

CAS 624-31-7

Name 1-Iodo-4-methylbenzene

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Basic Information

Synonyms: 1-iodo-4-methyl-benzen p-Iodotoluene 1-iodo-4-methylbenzene Benzene,1-iodo-4-methyl- 4-lodotoluene p-Iodomethylbenzene 4-Iodotoluene

Molecular Formula: C7H7I

Molecular Weight: 218.03

MDL Number: MFCD00001059

Categories: Synthetic Chemistry > Organic Building Blocks > Halogenated Compounds Materials Chemistry > Optoelectronic and Organic Semiconductor Materials > OLED and Organic Optoelectronic Precursors

Product Description:

4-Iodotoluene is an organic compound with the molecular formula C7H7I. It is a colorless to pale yellow liquid or low-melting solid at room temperature. Structurally, it consists of a toluene molecule with an iodine atom substituted at the para position of the benzene ring. It is a versatile aryl halide building block. Its primary application is as a key intermediate in organic synthesis, particularly in cross-coupling reactions such as Suzuki, Stille, and Negishi couplings. These reactions are fundamental for constructing biaryl systems, which are core structures in many pharmaceuticals, agrochemicals, and advanced materials. Specifically, 4-iodotoluene serves as a precursor in the synthesis of various liquid crystals and organic light-emitting diode (OLED) materials, where its para-substituted aromatic structure is a common motif. The compound is also used in the preparation of other functionalized toluene derivatives and as a starting material for ligands in catalysis. It should be handled with care as it is an irritant to skin, eyes, and the respiratory system, and it is light-sensitive, requiring storage in dark, cool conditions.

Physical Properties

Melting Point: 33-35 °C(lit.)

Boiling Point: 211.5 °C(lit.)

Flash Point: 90 °C

Density: 1,678 g/cm3

Solubility: insoluble

Analytical Data

Appearance: white to light yellow crystalline low melting mass