2,4,5-TRICHLOROPYRIMIDINE
2,4,5-Trichloropyrimidine
CAS: 5750-76-5
Molecular Formula: C4HCl3N2
2,4,5-TRICHLOROPYRIMIDINE - Names and Identifiers
| Name | 2,4,5-Trichloropyrimidine |
| Synonyms | 2,4,5-TrichL 2,5,6-TRICHLOROPYRIMIDINE 2,4,5-Trichloropyrimidine 2,4,5-TRICHLOROPYRIMIDINE 2,5,6-trichloropyrimidine 2,4,5-Trichloro-1,3-diazine 2,4,5-three chloropyriMidine |
| CAS | 5750-76-5 |
| EINECS | 628-281-0 |
| InChI | InChI=1/C4HCl3N2/c5-2-1-8-4(7)9-3(2)6/h1H |
| InChIKey | GIKMWFAAEIACRF-UHFFFAOYSA-N |
2,4,5-TRICHLOROPYRIMIDINE - Physico-chemical Properties
| Molecular Formula | C4HCl3N2 |
| Molar Mass | 183.42 |
| Density | 1.6001 g/mL at 25 °C (lit.) |
| Boling Point | 84°C 1mm |
| Flash Point | >230°F |
| Water Solubility | Not miscible or difficult to mix in water. |
| Vapor Presure | 0.0221mmHg at 25°C |
| Appearance | clear liquid |
| Color | Colorless to Light orange to Yellow |
| BRN | 4449 |
| pKa | -4.26±0.29(Predicted) |
| Storage Condition | Inert atmosphere,Store in freezer, under -20°C |
| Refractive Index | n20/D 1.574(lit.) |
2,4,5-TRICHLOROPYRIMIDINE - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | 3267 |
| WGK Germany | 3 |
| HS Code | 29335990 |
| Hazard Note | Irritant |
| Hazard Class | 8 |
| Packing Group | III |
2,4,5-TRICHLOROPYRIMIDINE - Reference Information
| Overview | 2,4, 5-trichloropyrimidine is a new type of reactive dye intermediate raw material and a synthetic raw material for new antibacterial and anti-inflammatory chemicals. With the continuous increase in sales of new reactive dyes and antibacterial and anti-inflammatory drugs, the demand for raw materials 2,4, 5-trichloropyrimidine for its synthesis is also increasing, therefore, it is particularly urgent to study its synthesis and develop a new green process suitable for industrial production. At present, the domestic company basically adopts the traditional technology, the production conditions are harsh, the environmental pollution is more serious. |
| Preparation | A method for preparing 2,4, 5-trichloropyrimidine compounds, which is characterized in that it includes the following steps: in the solvent dichloroethane, 5-chlorouracil and thionyl chloride are put into the reaction, heat preservation and reflux reaction is completed, water is added, the water layer is separated, and then distillation is carried out to evaporate dichloroethane to obtain 2,4, 5-trichloropyrimidine. The molar ratio of 5-chlorouracil to thionyl chloride is 1:1-30; the reaction time of heat preservation reflux is 1-60 hours. |
Last Update：2024-04-10 22:29:15
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