Methyl 2,5-Dibromopentanoate
- CAS No.
- 50995-48-7
- Chemical Name:
- Methyl 2,5-Dibromopentanoate
- Synonyms
- METHYL 2,5-DIBROMOVALERATE;METHYL 2,5-DIBROMOPENTANOATE;2,5-Dibromovaleric acid methyl ester;2,5-Dibromopentanoic acid methyl ester;Pentanoic acid, 2,5-dibromo-, methyl ester
- CBNumber:
- CB9231007
- Molecular Formula:
- C6H10Br2O2
- Molecular Weight:
- 273.95
- MDL Number:
- MFCD02684289
- MOL File:
- 50995-48-7.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Boiling point | 93-95°C 1mm |
|---|---|
| Density | 1,746 g/cm3 |
| storage temp. | 2-8°C |
| solubility | Chloroform (Slightly, Sonicated), Methanol (Slightly) |
| form | Oil |
| color | Colourless |
| InChI | InChI=1S/C6H10Br2O2/c1-10-6(9)5(8)3-2-4-7/h5H,2-4H2,1H3 |
| InChIKey | YVHCGWPKBSEBTH-UHFFFAOYSA-N |
| SMILES | C(OC)(=O)C(Br)CCCBr |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302+H312+H332-H315-H319-H335 |
| Precautionary statements | P280-P271 |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36/37/39 |
| HS Code | 2915705090 |
Methyl 2,5-Dibromopentanoate price More Price(52)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Usbiological | 274336 | 2,5-Dibromopentanoic acid methyl ester Asreported | 50995-48-7 | 1g | $409 | 2026-06-03 | Buy |
| Usbiological | 274336 | 2,5-Dibromopentanoic acid methyl ester Asreported | 50995-48-7 | 2g | $625 | 2026-06-03 | Buy |
| Usbiological | 274336 | 2,5-Dibromopentanoic acid methyl ester Asreported | 50995-48-7 | 5g | $887 | 2026-06-03 | Buy |
| TRC | TRC-M301180-1G | Methyl 2,5-Dibromopentanoate | 50995-48-7 | 1g | $122 | 2026-06-03 | Buy |
| Apolloscientific | OR8857 | Methyl 2,5-dibromopentanoate ≥95% | 50995-48-7 | 1g | $37 | 2026-06-04 | Buy |
Methyl 2,5-Dibromopentanoate Chemical Properties,Uses,Production
Uses
Methyl 2,5-Dibromopentanoate can be used for liquid crystal compounds for display devices.
Synthesis
542-28-9
67-56-1
50995-48-7
The general procedure for the synthesis of methyl 2,5-dibromovalerate from tetrahydro-2H-pyran-2-one and methanol was as follows: 518 g of 6-valerol and 5 ml of phosphorus tribromide were added to an 11-necked, three-necked flask. The mixture was heated to 95 °C to 105 °C under stirring conditions, followed by the slow addition of 550 g of bromine while controlling the reaction temperature between 100 °C and 120 °C. After the reaction system was stabilized, another 5 ml of phosphorus tribromide and 236 g of bromine were added at 110 °C. After the addition was completed, the reaction mixture was allowed to stand for 30 minutes and subsequently cooled to between 0°C and 10°C. Next, 11 ml of methanol and 1 g of p-toluenesulfonic acid were added to the reaction system and the reaction temperature was maintained at 25 °C. After refluxing the reaction mixture for 5 hours, the excess reagent was removed by distillation and the lower organic phase was isolated. The organic phase was washed sequentially with 500 ml of 10% sodium hydroxide solution and 500 ml of water. After the washing was completed, the organic layer was separated and purified by fractional distillation (139 °C to 142 °C/28 hPa) to give 612.7 g of methyl 2,5-dibromopentanoate in 45% yield and >96% GC purity.
References
[1] Chemical Communications, 2015, vol. 51, # 70, p. 13470 - 13473
[2] Patent: WO2005/28449, 2005, A1. Location in patent: Page/Page column 11
[3] Tetrahedron, 1998, vol. 54, # 19, p. 4991 - 5004
Methyl 2,5-Dibromopentanoate Preparation Products And Raw materials
Methyl 2,5-Dibromopentanoate Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Grice Rand (Tianjin) Pharmaceutical Co., Ltd. | 022-83705301 13752403750 | 2966024760@qq.com | China | 814 | 55 |
| Wuhan EnTai Technology Development Co,.Ltd | 86-27-82330560 | 2536851935@qq.com | China | 346 | 69 |
| Chemsky（shanghai）International Co.,Ltd. | 021-50135380 | shchemsky@sina.com | China | 32273 | 50 |
| Beijing Isomersyn Technology CO;LTD | 010-82954736 13391601435 | sales@isomersyn.com | China | 3294 | 57 |
| Shanghai Na Qian Chemical Technology Co. Ltd. | 13598610367 13598610367 | 2841375912@qq.com | China | 3574 | 52 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
| Henan Alfachem Co.,Ltd. | 0371-55051623 18137891487 | 3983243027@qq.com | China | 9965 | 58 |
| Jiangsu aikang biomedical research and development co., LTD | 025-58859352 17714375163 | qzhang@aikonchem.com | China | 15525 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 +86-17392587031 | 1059@dideu.com | China | 9983 | 58 |
View Lastest Price from Methyl 2,5-Dibromopentanoate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2022-01-15 | Methyl2,5-Dibromopentanoate
50995-48-7
|
1KG | 99.3% | 100 tons | Honest Joy Holdings Limited |
-
- Methyl2,5-Dibromopentanoate
50995-48-7
- $0.00
- 99.3%
- Honest Joy Holdings Limited
