3,4-Dichloroiodobenzene

Product Name: 3,4-Dichloroiodobenzene
CAS No.: 20555-91-3
Chemical Name: 3,4-Dichloroiodobenzene
Synonyms: 3,4-DICHLOROIODOBENZENE;4-Iodo-o-dichlorobenzene;3,4-Dichlorophenyl iodide;1,2-dichloro-4-iodo-benzen;3,4-Dichloro-1-iodobenzene;1,2-DICHLORO-4-IODOBENZENE;3,4-Dichloroiodobenzene 99%;3,4-Dichloroiodobenzene,98%;Benzene,1,2-dichloro-4-iodo-;1,2-Dichloro-4-iodobenzene >
CBNumber: CB0752815
Molecular Formula: C6H3Cl2I
Formula Weight: 272.9
MOL File: 20555-91-3.mol

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3,4-Dichloroiodobenzene Property

Melting point:: 27-29 °C (lit.)
Boiling point:: 116-118 °C (12 mmHg)
Density: 1.9882 (estimate)
refractive index: 1.6480
Flash point:: >230 °F
storage temp.: Keep in dark place,Sealed in dry,Room Temperature
solubility: soluble in Methanol
form: powder to lump to clear liquid
color: White or Colorless to Yellow
Sensitive: Light Sensitive
BRN: 2245136
CAS DataBase Reference: 20555-91-3(CAS DataBase Reference)
EPA Substance Registry System: Benzene, 1,2-dichloro-4-iodo- (20555-91-3)

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Safety

Hazard Codes: Xi,Xn
Risk Statements: 36/37/38-20/21/22
Safety Statements: 37/39-26-36/37/39
WGK Germany: 3
Hazard Note: Irritant/Light Sensitive
TSCA: Yes
HS Code: 29039990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 541753
Product name: 3,4-Dichloroiodobenzene
Purity: 98%
Packaging: 25g
Price: $105
Updated: 2025/07/31

Sigma-Aldrich

Product number: 541753
Product name: 3,4-Dichloroiodobenzene
Purity: 98%
Packaging: 250g
Price: $745
Updated: 2022/05/15

TCI Chemical

Product number: D1436
Product name: 1,2-Dichloro-4-iodobenzene
Packaging: 10G
Price: $31
Updated: 2025/07/31

AK Scientific

Product number: X8199
Product name: 1,2-Dichloro-4-iodobenzene
Packaging: 500g
Price: $481
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: HCH0020716
Product name: 3,4-DICHLORO IODOBENZENE
Purity: 95.00%
Packaging: 25G
Price: $1071.51
Updated: 2021/12/16

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3,4-Dichloroiodobenzene Chemical Properties,Usage,Production

Chemical Properties

beige low melting solid

Uses

3,4-Dichloroiodobenzene may be used in the preparation of:

tetrachloromethoxybiphenyls
1-(3,4-dichlorophenyl)-2-trimethylsilylacetylene
2-(3,4-dichlorocinnamyl)isoindoline-1,3-dione

General Description

3,4-Dichloroiodobenzene undergoes Stille coupling reaction with vinyltributyltin in the presence of Pd(0)precursors to furnish styrene derivative.

Synthesis

95-76-1

20555-91-3

General procedure for the synthesis of 3,4-dichloroiodobenzene from 3,4-dichloroaniline: 3,4-dichloroaniline (15 g) was added to a stirred aqueous solution (350 mL) of concentrated H2SO4 (27.2 g). The mixture was heated to 80°C and stirred at this temperature for 10 minutes. Subsequently, the mixture was cooled to below 5°C and an aqueous solution of NaNO2 (6.4 g) (40 mL) was slowly added dropwise. After the dropwise addition, stirring was continued for 1 hour, and then an aqueous solution of KI (15.4 g) (40 mL) was slowly added. The reaction mixture was stirred for an additional 30 min, followed by heating in a 40 °C water bath for 30 min. After the reaction was completed, the mixture was extracted with CH2Cl2. The CH2Cl2 extracts were combined, dried and concentrated with CaCl2. Finally, the residue was purified by column chromatography using petroleum ether as eluent to give 20 g of the target product 3,4-dichloroiodobenzene in 79% yield.

References

[1] Patent: US2005/234046, 2005, A1. Location in patent: Page/Page column 59
[2] Recueil des Travaux Chimiques des Pays-Bas, 1930, vol. 49, p. 1082,1087
[3] Journal of Organometallic Chemistry, 1977, vol. 136, p. 185 - 200
[4] Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1982, p. 1593 - 1598

3,4-Dichloroiodobenzene Preparation Products And Raw materials

Raw materials

Preparation Products

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3,4-Dichloroiodobenzene Suppliers

Americas 1 Belgium 2 China 152 Europe 2 France 2 Germany 6 India 8 Japan 3 Switzerland 2 The Netherlands 1 United Kingdom 14 United States 28 Global 221

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
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Alfa Aesar

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TCI (Shanghai) Development Co., Ltd.

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Energy Chemical

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Wuhan Chemwish Technology Co., Ltd

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Capot Chemical Co., Ltd

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Shanghai Sinch Parmaceuticals Tech. Co. Ltd.

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Shanghai Harvest Chemical Industrial Co., Ltd.

Tel: 021-31038972,31038973 17321035817
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Shanghai Hanhong Scientific Co.,Ltd.

Tel: 021-54306202 13764082696
Email: info@hanhongsci.com
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ProdList: 42934
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View Lastest Price from 3,4-Dichloroiodobenzene manufacturers

Hebei Chuanghai Biotechnology Co., Ltd

Product: 3,4-Dichloroiodobenzene 20555-91-3
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 20 mt
Release date: 2024-12-10

Speranza Chemical Co., Ltd.

Product: 1,2-Dichloro-4-iodobenzene 20555-91-3
Price: US $193.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 300MT/year
Release date: 2019-12-24

Shenzhen Nexcon Pharmatechs Ltd.

Product: 3,4-Dichloroiodobenzene 20555-91-3
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 2000
Release date: 2025-04-17

20555-91-3, 3,4-DichloroiodobenzeneRelated Search:

1,2-Diiodobenzene 1,3-Dichloropropene Chlorobenzene Iodobenzene 2-Iodobenzoic acid Methyl 2-iodobenzoate Bromobenzene (Diacetoxyiodo)benzene Dichloroethane 4-Iodobenzoic acid 1,4-Diiodobenzene 2,3,5-Triiodobenzoic acid Thionyl chloride 1-Chloro-3-iodobenzene 1-IODO-2,4,5-TRICHLOROBENZENE 1-Chloro-4-iodobenzene 2,5-DICHLOROIODOBENZENE 2,4-DICHLOROIODOBENZENE

Benzene,1,2-dichloro-4-iodo-

3,4-Dichloro-1-iodobenzene

3,4-Dichlorophenyl iodide

4-Iodo-o-dichlorobenzene

3,4-Dichloroiodobenzene,98%

3,4-Dichloroiodobenzene 99%

3,4-Dichloroiodobenzene(1,2-Dichloro-4-iodobenzene)

1,2-DICHLORO-4-IODOBENZENE

3,4-DICHLOROIODOBENZENE

1,2-dichloro-4-iodo-benzen

1,2-Dichloro-4-iodobenzene &gt

3,4-Dichloroiodobenzene ISO 9001：2015 REACH

20555-91-3

Cl2C6H3I

Cl2C6H3l

Halogenated Hydrocarbons

Organic Building Blocks

Building Blocks

Aryl

HALOGEN

C6

Aryl

Building Blocks

Chemical Synthesis

Halogenated Hydrocarbons

Organic Building Blocks

Chlorine Compounds

Iodine Compounds

C6