1,4-Diiodobenzene
- CAS No.
- 624-38-4
- Chemical Name:
- 1,4-Diiodobenzene
- Synonyms
- diiodobenzene;P-DIIODOBENZENE;4-DIIODOBENZENE;1,4-Diiobenzene;1,4-Diiodobenze;1,4-diiodbenzene;1,4-Diodobenzene;1,4-Diidobenzene;1,4-diiodo-benzen;1,4-DIIODOBENZENE
- CBNumber:
- CB0293970
- Molecular Formula:
- C6H4I2
- Molecular Weight:
- 329.9
- MDL Number:
- MFCD00001054
- MOL File:
- 624-38-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 1,4-Diiodobenzene 99% | 193526 | 10g | $77.8 |
| 1,4-Diiodobenzene 99% | 193526 | 50g | $143 |
| 1,4-Diiodobenzene >98.0%(GC) | D0608 | 5g | $22 |
| 1,4-Diiodobenzene >98.0%(GC) | D0608 | 25g | $81 |
| 1,4-Diiodobenzene Asreported | 273161 | 100g | $347 |
| More product size | |||
| Melting point | 131-133 °C (lit.) |
|---|---|
| Boiling point | 285 °C (lit.) |
| Density | 2.350 |
| refractive index | 1.6212 |
| Flash point | 285°C |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | Crystalline Powder |
| color | White to beige |
| Water Solubility | Soluble in ether and ethanol. Insoluble in water. |
| Sensitive | Light Sensitive |
| BRN | 1904546 |
| Dielectric constant | 2.8799999999999999 |
| InChI | 1S/C6H4I2/c7-5-1-2-6(8)4-3-5/h1-4H |
| InChIKey | LFMWZTSOMGDDJU-UHFFFAOYSA-N |
| SMILES | Ic1ccc(I)cc1 |
| CAS DataBase Reference | 624-38-4(CAS DataBase Reference) |
| FDA UNII | I9XCF83VAV |
| NIST Chemistry Reference | Benzene, 1,4-diiodo-(624-38-4) |
| EPA Substance Registry System | Benzene, 1,4-diiodo- (624-38-4) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 22-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 8 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29036990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
1,4-Diiodobenzene price More Price(105)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 193526 | 1,4-Diiodobenzene 99% | 624-38-4 | 10g | $77.8 | 2026-04-30 | Buy |
| Sigma-Aldrich | 193526 | 1,4-Diiodobenzene 99% | 624-38-4 | 50g | $143 | 2026-04-30 | Buy |
| TCI Chemical | D0608 | 1,4-Diiodobenzene >98.0%(GC) | 624-38-4 | 5g | $22 | 2026-04-30 | Buy |
| TCI Chemical | D0608 | 1,4-Diiodobenzene >98.0%(GC) | 624-38-4 | 25g | $81 | 2026-04-30 | Buy |
| Usbiological | 273161 | 1,4-Diiodobenzene Asreported | 624-38-4 | 100g | $347 | 2026-06-03 | Buy |
1,4-Diiodobenzene Chemical Properties,Uses,Production
Chemical Properties
1,4-Diiodobenzene appears as white to light orange crystals or powder. Its melting point is 131–132 °C, and it boils at 285 °C (sublimes). The compound is readily soluble in ether and ethanol, but insoluble in water.
Uses
1,4-Diiodobenzene is used in Suzuki reaction. It is used as a precursor in the preparation of martinellic acid and 1,4-bis(p-R-phenylethynyl)benzenes. Further, it is employed in the preparation of 1,4-diiodo-2,5-didodecylbenzene , which is a starting reagent for the synthesis of oligo(1,4-phenylene ethynylene). It is also used in human and animal nutrition products including antiseptics and disinfectants. In addition to this, it used in polarizing films for liquid crystal display chemicals.
Preparation
1,4-Diiodobenzene is obtained by diazotising p-iodoaniline followed by substitution. An alternative preparation method involves diazotising p-phenylenediamine hydrochloride, followed by substitution with potassium iodide.
Purification Methods
Crystallise it from EtOH or boiling MeOH, then dry it in air. [Beilstein 5 IV 700.]
References
[1] JENS CARDINALE Heinz H C Johannes Ermert. Convenient preparation of (4-iodophenyl)aryliodonium salts[J]. Tetrahedron, 2012, 68 22: Pages 4112-4116. DOI:10.1016/j.tet.2012.03.113.
[2] ROEL S. SáNCHEZ-CARRERA. Charge-Transport Properties of the 1,4-Diiodobenzene Crystal: A Quantum-Mechanical Study[J]. Chemistry of Materials, 2008, 20 18: 5832-5838. DOI:10.1021/cm801108c.
[3] DU ZONG-DA Yang C X Cui Yuan Yuan. Synthesis of silica amino-functionalized microporous organic network composites for efficient on-line solid phase extraction of trace phenols from water.[J]. Journal of Chromatography A, 2020, 1616: 460791. DOI:10.1016/j.chroma.2019.460791.
1,4-Diiodobenzene Preparation Products And Raw materials
Raw materials
Preparation Products
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| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Chemsigma International Co., Ltd. | +86-2558742998 +86-19951791336 | info@chemsigma.com | China | 1817 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +86-15350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 | sales1@chuanghaibio.com | China | 5218 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20120 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 14026 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8618017249410 | jack.li@time-chemicals.com | China | 1803 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| Speranza Chemical Co., Ltd. | +86-86-075521030354 +86-18688942810 | sophieliu@speranzachem.com | China | 923 | 55 |
Related articles
- 1,4-Diiodobenzene: Photodissociation Dynamics and Synthetic Applications
- 1,4-Diiodobenzene undergoes ultrafast photodissociation via Rydberg states, aids in synthesizing hypervalent iodine compounds.
- Jun 19，2025
View Lastest Price from 1,4-Diiodobenzene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-04 | 1,4-Diiodobenze
624-38-4
|
$20.00 | 1KG | 98% | 20 tons | Speranza Chemical Co., Ltd. | |
 |
2026-08-04 | 1,4-Diiodobenzene
624-38-4
|
1KG | 98%min | 30tons/month | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-07-09 | 1,4-Diiodobenzene
624-38-4
|
$1.00-100.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd |
-
- 1,4-Diiodobenze
624-38-4
- $20.00
- 98%
- Speranza Chemical Co., Ltd.
-
- 1,4-Diiodobenzene
624-38-4
- $0.00
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- 1,4-Diiodobenzene
624-38-4
- $1.00-100.00
- 99%
- Henan Fengda Chemical Co., Ltd
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