Pyrimidine,2,4-dichloro-
2,4-Dichloropyrimidine
CAS: 3934-20-1
Molecular Formula: C4H2Cl2N2
Pyrimidine,2,4-dichloro- - Names and Identifiers
| Name | 2,4-Dichloropyrimidine |
| Synonyms | NSC 49119 NSC 37531 AI3-26561 NSC 20212 AKOS 91058 2,4-Dichlorpyrimidin 2,6-DICHLOROPYRIMIDINE 2,4-Dichloropyrimidine 2,4-DICHLOROPYRIMIDINE 2,6-Dichloropyrimidine 2,4-dichloro-pyrimidin Pyrimidine,2,4-dichloro- Pyrimidine, 2,4-dichloro- 2,4-Dichloropyrimidine Pazopanib 2-4-DICHLOROPYRIMIDINE CRYSTALLINE |
| CAS | 3934-20-1 |
| EINECS | 223-508-6 |
| InChI | InChI=1/C4H2Cl2N2/c5-3-1-2-7-4(6)8-3/h1-2H |
| InChIKey | BTTNYQZNBZNDOR-UHFFFAOYSA-N |
Pyrimidine,2,4-dichloro- - Physico-chemical Properties
| Molecular Formula | C4H2Cl2N2 |
| Molar Mass | 148.98 |
| Density | 1.6445 (rough estimate) |
| Melting Point | 57-61 °C (lit.) |
| Boling Point | 101 °C/23 mmHg (lit.) |
| Flash Point | 101°C/23mm |
| Water Solubility | Soluble in water (partly), methanol, chloroform, and ethyl acetate. |
| Solubility | Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly) |
| Vapor Presure | 0.298mmHg at 25°C |
| Appearance | White solid |
| Color | White to yellow to beige or grayish |
| BRN | 110911 |
| pKa | -2.84±0.20(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.6300 (estimate) |
| MDL | MFCD00006061 |
| Physical and Chemical Properties | Melting point 57-62°C boiling point 101°C (23 mmHg) |
Pyrimidine,2,4-dichloro- - 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. S28A - |
| UN IDs | 1759 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29335990 |
| Hazard Class | 8 |
| Packing Group | III |
Pyrimidine,2,4-dichloro- - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | for the production of drug arabinoside hydrochloride. Block used in pharmaceutical chemical synthesis; block used for Suzuki coupling, alkylation and other reactions |
| Production method | is obtained by chlorination of uracil. Add uracil, phosphorus oxychloride and dimethylaniline to the reaction pot, heat to 130 ℃, reflux for about 45min, cool slightly, put into crushed ice, I .e. precipitate purple solid, filter while hot and insoluble, wash with ice water, dry in vacuum to obtain purple-like crude, decolorize and recrystallize with petroleum ether (boiling range 60-90 ℃) to obtain 2, 4-dichloropyrimidine. |
Last Update：2024-04-09 21:01:54
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