- 2,5-DIBROMO-3,4-DINITROTHIOPHENE
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- $200.00 / 1KG
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2025-09-25
- CAS:52431-30-8
- Min. Order: 1KG
- Purity: 99%, 99.5% Sublimated
- Supply Ability: g-kg-tons, free sample is available
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| | 2,5-DIBROMO-3,4-DINITROTHIOPHENE Basic information |
| Product Name: | 2,5-DIBROMO-3,4-DINITROTHIOPHENE | | Synonyms: | 2,5-DIBROMO-3,4-DINITROTHIOPHENE;AKOS 92299;2,5-Dibromo-3,4-dinitrthiphene;2,5-DIBROMO-3,4-DINITROTHIOPHENE 98+%;2,5-DibroMo-3,4-dinitrothiophene 98%;NSC 84661;2,5-Dibromo-3,4-dinitrothiophene,95%;DibroMo-3,4-dinitrothio | | CAS: | 52431-30-8 | | MF: | C4Br2N2O4S | | MW: | 331.93 | | EINECS: | 676-535-4 | | Product Categories: | Metal Isotopes;Sulfur & Selenium Compounds;Thiophene Series;Thiophenes | | Mol File: | 52431-30-8.mol |  |
| | 2,5-DIBROMO-3,4-DINITROTHIOPHENE Chemical Properties |
| Melting point | 137°C | | Boiling point | 341.2±37.0 °C(Predicted) | | density | 2.459±0.06 g/cm3(Predicted) | | storage temp. | Keep in dark place,Sealed in dry,Room Temperature | | solubility | Acetone, Methanol | | form | Solid | | color | Light Orange | | Water Solubility | Insoluble in water. | | BRN | 218219 | | InChI | InChI=1S/C4Br2N2O4S/c5-3-1(7(9)10)2(8(11)12)4(6)13-3 | | InChIKey | AHGHPBPARMANQD-UHFFFAOYSA-N | | SMILES | C1(Br)SC(Br)=C([N+]([O-])=O)C=1[N+]([O-])=O | | CAS DataBase Reference | 52431-30-8(CAS DataBase Reference) |
| Hazard Codes | Xn | | Risk Statements | 36/37/38-22 | | Safety Statements | 26-36-37 | | WGK Germany | 3 | | HS Code | 29349990 | | Storage Class | 11 - Combustible Solids | | Hazard Classifications | Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| Provider | Language |
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ALFA
| English |
| | 2,5-DIBROMO-3,4-DINITROTHIOPHENE Usage And Synthesis |
| Chemical Properties | Light Orange Solid | | Uses | Reatant in the synthesis of bromodinitro compound, polymers via stille coupling. 3,4-diaminothiophene was obtained from the reduction of 2,5-dibromo-3,4-dinitrothiophene. | | Uses | This monomer is useful in the Pd catalyzed Stille coupling to make conjugated thiophene oligomers or co-oligomers. The corresponding amine(s) can be obtained by subsequent reduction. | | Synthesis | GENERAL STEPS: Preparation The synthesis of 2,5-dibromo-3,4-dinitrothiophene from 2,5-dibromothiophene in Example 1 was carried out as follows: firstly, a mixed acid was prepared by mixing 11 mL of fuming nitric acid with 20 mL of fuming sulfuric acid. Subsequently, 13 mL of concentrated sulfuric acid was added to this mixed acid to prepare a reaction solution. To this solution, 7.5 g (31 mmol) of 2,5-dibromothiophene was slowly added dropwise while maintaining the reaction temperature between 20 and 30 °C by means of a water bath with continuous stirring for 3 hours. Upon completion of the reaction, the reaction solution was transferred to a vessel containing 90 g of ice to terminate the reaction. The resulting solid product was collected by filtration and purified by recrystallization with methanol to give the final target product 2,5-dibromo-3,4-dinitrothiophene. The yield based on 2,5-dibromothiophene was 66%. | | References | [1] Journal of Chemical Crystallography, 2007, vol. 37, # 6, p. 387 - 398
[2] Dyes and Pigments, 2012, vol. 92, # 1, p. 674 - 680
[3] Patent: KR2018/17709, 2018, A. Location in patent: Paragraph 0173; 0176; 0180-0182
[4] European Journal of Organic Chemistry, 2012, # 28, p. 5540 - 5551
[5] Macromolecules, 2010, vol. 43, # 2, p. 697 - 708 |
| | 2,5-DIBROMO-3,4-DINITROTHIOPHENE Preparation Products And Raw materials |
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