1,4-Dibromopentane
- Product Name
- 1,4-Dibromopentane
- CAS No.
- 626-87-9
- Chemical Name
- 1,4-Dibromopentane
- Synonyms
- 1,4-Dibrompentan;1,4-DIBROMOPENTANE;1,4-dibromo-pentan;pentane,1,4-dibromo-;1,4-Dibromopentane >1,4-Dibromopentane,97%;(RS)-1,4-Dibromopentane;1,4-DibroMopentane, 97% 25GR;1,4-DibromopentaneDISC 05/09/02;1,4-Dibromopentane ISO 9001：2015 REACH
- CBNumber
- CB0496070
- Molecular Formula
- C5H10Br2
- Formula Weight
- 229.94
- MOL File
- 626-87-9.mol
1,4-Dibromopentane Property
- Melting point:
- -34.4 °C (lit.)
- Boiling point:
- 98-99 °C/25 mmHg (lit.)
- Density
- 1.687 g/mL at 25 °C (lit.)
- refractive index
- n20/D 1.508
- Flash point:
- >110°C
- storage temp.
- 2-8°C
- form
- clear liquid
- color
- Colorless to Light orange to Yellow
- Specific Gravity
- 1.687
- Water Solubility
- Insoluble in water.
- BRN
- 605295
- CAS DataBase Reference
- 626-87-9(CAS DataBase Reference)
- NIST Chemistry Reference
- Pentane, 1,4-dibromo-(626-87-9)
- EPA Substance Registry System
- Pentane, 1,4-dibromo- (626-87-9)
Safety
- Hazard Codes
- Xi,Xn
- Risk Statements
- 36/37/38-36/38-22
- Safety Statements
- 26-36-37/39
- WGK Germany
- 3
- TSCA
- Yes
- HS Code
- 29033919
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 252077
- Product name
- 1,4-Dibromopentane
- Purity
- 97%
- Packaging
- 25g
- Price
- $165
- Updated
- 2024/03/01
- Product number
- D1408
- Product name
- 1,4-Dibromopentane
- Purity
- >95.0%(GC)
- Packaging
- 5g
- Price
- $24
- Updated
- 2024/03/01
- Product number
- D1408
- Product name
- 1,4-Dibromopentane
- Purity
- >95.0%(GC)
- Packaging
- 25g
- Price
- $62
- Updated
- 2024/03/01
- Product number
- L09842
- Product name
- 1,4-Dibromopentane, 97%
- Packaging
- 25g
- Price
- $92.65
- Updated
- 2024/03/01
- Product number
- L09842
- Product name
- 1,4-Dibromopentane, 97%
- Packaging
- 100g
- Price
- $243.65
- Updated
- 2024/03/01
1,4-Dibromopentane Chemical Properties,Usage,Production
Chemical Properties
clear colorless to light yellow-brown liquid with a wine smell.
Uses
1,4-Dibromopentane is used in the preparation of pharaoh ant trail pheromone stereoisomer, indolizidine alkaloid. It is also involved in the preparation 1,2-dimethyl-1-phenylcyclopentane and boc-L-2-amino-6-bromoheptanoic acid.
Preparation
1,4-Dibromopentane is synthesized by ring-opening bromination of 2-methyltetrahydrofuran with hydrobromic acid and sulfuric acid. First, add hydrobromic acid into the reaction pot for cooling, slowly add 2-methyltetrahydrofuran and sulfuric acid in turn under stirring, and finish the addition when the temperature does not exceed 40°C. The temperature was raised to 60°C, reacted for 2h, and then reacted at 80-85°C for 4h. After cooling, the bromide was separated and washed with water until neutral to obtain 1,4-dibromopentane as an oily substance. Yield 92.5%.
Synthesis Reference(s)
Journal of the American Chemical Society, 74, p. 917, 1952 DOI: 10.1021/ja01124a016
1,4-Dibromopentane Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 1,4-Dibromopentane manufacturers
- Product
- 1,4-Dibromopentane 626-87-9
- Price
- US $101.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2023-12-28
- Product
- 1,4-Dibromopentane 626-87-9
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 500ton/Month
- Release date
- 2021-12-21
- Product
- 1,4-Dibromopentane 626-87-9
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-08-11