4,5-Dichloro-1,2-benzenediamine
Synonym(s):1,2-Diamino-4,5-dichlorobenzene;4,5-Dichloro-1,2-phenylenediamine
- CAS NO.：5348-42-5
- Empirical Formula: C6H6Cl2N2
- Molecular Weight: 177.03
- MDL number: MFCD00007723
- EINECS: 226-305-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-11-07 17:33:14
What is 4,5-Dichloro-1,2-benzenediamine?
Chemical properties
red-brown to brown crystalline powder
The Uses of 4,5-Dichloro-1,2-benzenediamine
It is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.
Purification Methods
Reflux the amine with activated charcoal in CH2Cl2, followed by recrystallisation from Et2O/pet ether or pet ether [Koolar & Kochi J Org Chem 52 4545 1987]. Alternatively, recrystallise the diamine from hexane, *C6H6, pet ether or H2O (Na2SO4) and sublime it at 150o/15mm. [Beilstein 13 IV 72.]
Properties of 4,5-Dichloro-1,2-benzenediamine
| Melting point: | 158-164 °C(lit.) |
| Boiling point: | 291.88°C (rough estimate) |
| Density | 1.4668 (rough estimate) |
| refractive index | 1.6400 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | DMSO, Methanol |
| form | Crystalline Powder |
| pka | 2.77±0.10(Predicted) |
| color | Red-brown to brown |
| Water Solubility | Soluble in methanol and Dimethyl sulfoxide. Insoluble in water. |
| BRN | 1072811 |
| CAS DataBase Reference | 5348-42-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 4,5-Dichloro-ortho-phenylenediamine(5348-42-5) |
Safety information for 4,5-Dichloro-1,2-benzenediamine
| 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. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4,5-Dichloro-1,2-benzenediamine
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product: 5348-42-5 98%
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