3,4-Dichloroiodobenzene
- CAS NO.：20555-91-3
- Empirical Formula: C6H3Cl2I
- Molecular Weight: 272.9
- MDL number: MFCD00019014
- EINECS: 243-874-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 22:53:30
What is 3,4-Dichloroiodobenzene?
Chemical properties
beige low melting solid
The Uses of 3,4-Dichloroiodobenzene
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.
Properties of 3,4-Dichloroiodobenzene
| 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) |
Safety information for 3,4-Dichloroiodobenzene
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 3,4-Dichloroiodobenzene
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