2-Bromobutane
- CAS No.
- 78-76-2
- Chemical Name:
- 2-Bromobutane
- Synonyms
- SEC-BUTYL BROMIDE;S-BUTYL BROMIDE;BROMOBUTANE, 2-(SG);1-BROMO-1-METHYLPROPANE;2-Bromobutane sec-Butylbromide;sec-C4H9Br;2-Brombutan;2-BROMOBUTANE;2-bromo-butan;bromo-2butane
- CBNumber:
- CB9854376
- Molecular Formula:
- C4H9Br
- Molecular Weight:
- 137.02
- MDL Number:
- MFCD00000156
- MOL File:
- 78-76-2.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | -112 °C |
|---|---|
| Boiling point | 91 °C(lit.) |
| Density | 1.255 g/mL at 25 °C(lit.) |
| vapor pressure | 70 hPa (20 °C) |
| refractive index |
n |
| Flash point | 70 °F |
| storage temp. | Store at +2°C to +8°C. |
| solubility | <1g/l |
| form | Liquid |
| color | Clear colorless to yellow-brown |
| explosive limit | 2.6-6.6%(V) |
| Water Solubility | insoluble |
| Merck | 14,1554 |
| BRN | 505949 |
| Henry's Law Constant | 8.8×10-4 mol/(m3Pa) at 25℃, Brockbank (2013) |
| Dielectric constant | 8.6400000000000006 |
| Stability | Stable. Flammable. Incompatible with strong oxidizing agents. |
| InChI | 1S/C4H9Br/c1-3-4(2)5/h4H,3H2,1-2H3 |
| InChIKey | UPSXAPQYNGXVBF-UHFFFAOYSA-N |
| SMILES | CCC(C)Br |
| LogP | 3 at 35℃ and pH7 |
| CAS DataBase Reference | 78-76-2(CAS DataBase Reference) |
| FDA UNII | SSI829JO4W |
| NIST Chemistry Reference | Butane, 2-bromo-(78-76-2) |
| EPA Substance Registry System | Butane, 2-bromo- (78-76-2) |
| UNSPSC Code | 12352101 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS02,GHS07,GHS08 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H316-H341-H336-H412-H225 | |||||||||
| Precautionary statements | P501-P273-P202-P240-P261-P210-P233-P201-P243-P241-P242-P271-P280-P370+P378-P308+P313-P303+P361+P353-P332+P313-P304+P340+P312-P403+P233-P403+P235-P405 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 11-36/37/38-10-52 | |||||||||
| Safety Statements | 16-23-24/25-37/39-26 | |||||||||
| RIDADR | UN 2339 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | EJ6228000 | |||||||||
| Autoignition Temperature | 265 °C | |||||||||
| Hazard Note | Irritant/Highly Flammable | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29033036 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Aquatic Chronic 3 Flam. Liq. 2 |
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| Hazardous Substances Data | 78-76-2(Hazardous Substances Data) | |||||||||
| REACH Registrations | Active | |||||||||
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
2-Bromobutane price More Price(30)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | B59500 | 2-Bromobutane 98% | 78-76-2 | 100g | $55.3 | 2026-04-30 | Buy |
| Sigma-Aldrich | B59500 | 2-Bromobutane 98% | 78-76-2 | 500g | $141 | 2026-04-30 | Buy |
| TCI Chemical | B0561 | 2-Bromobutane >98.0%(GC) | 78-76-2 | 25g | $17 | 2026-04-30 | Buy |
| TCI Chemical | B0561 | 2-Bromobutane >98.0%(GC) | 78-76-2 | 500g | $82 | 2026-04-30 | Buy |
| Apolloscientific | OR4335 | 2-Bromobutane 98% | 78-76-2 | 5g | $21 | 2026-06-04 | Buy |
2-Bromobutane Chemical Properties, Uses, Production
Chemical Properties
colourless liquid with a pleasant odour
Uses
2-Bromobutane is used in the various organic synthesis, existing as a grignard reagent.
Uses
2-Bromobutane is utilized in the synthesis of non-nucleosides. It is used as a solvent as well as an intermediate in organic synthesis. It is an important raw material used to prepare Grignard reagent by reacting with magnesium. Further, it reacts with hydrocyanic acid to prepare sodium salt to get (+-)-sec-butyl cyanide. It is an important raw material used to prepare Grignard reagent by reacting with magnesium.
General Description
A colorless to pale-yellow colored liquid with a pleasant odor. Flash point 65°F. Insoluble in water and denser than water. Vapors are heavier than air and may be narcotic in high concentrations. Used to make other chemicals.
Air & Water Reactions
Highly flammable. Insoluble in water.
Reactivity Profile
Halogenated aliphatic compounds, such as 2-Bromobutane , are moderately or very reactive. Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms. Low molecular weight haloalkanes are highly flammable and can react with some metals to form dangerous products. Materials in this group are incompatible with strong oxidizing and reducing agents. Also, they are incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides. Gives toxic fumes of bromine when burned.
Hazard
Narcotic in high concentration. Flammable, dangerous fire risk.
Health Hazard
Irritating to eyes, nose, throat, upper respiratory tract, and skin. Symptoms of exposure include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.
Safety Profile
Narcotic in high concentrations. Questionable carcinogen with experimental neoplastigenic data. See also BROMIDES and CHLORINATED HYDROCARBONS, ALIPHATIC. Flammable liquid. Dangerous fire hazard when exposed to heat or flame. When heated to decomposition it emits toxic fumes of Br-; can react with oxidzing materials. To fight fire, use water, spray or mist, foam, Co2, dry chemical.
Purification Methods
Wash 2-bromobutane with conc HCl, water, 10% aqueous NaHSO3, and then water. Dry it with CaCl2, Na2SO4 or anhydrous K2CO3, and fractionally distil it through a 1m glass helices packed column. [Beilstein 1 IV 261.]
2-Bromobutane Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Liaocheng Xinli New Materials Co., LTD | 18963527911 18006357927 | 602422089@QQ.com | China | 156 | 58 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Beijing dtftchem Technology Co., Ltd. | 010-60275820 13031183356 | elainezt@sina.com | China | 1386 | 62 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 | |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Chemsky（shanghai）International Co.,Ltd. | 021-50135380 | shchemsky@sina.com | China | 32273 | 50 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
View Latest Price from 2-Bromobutane manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-14 | 2-Bromobutane
78-76-2
|
1KG | ≥99% | 60 Tons/Month | Yancheng Longshen Chemical Co.,Ltd. | ||
 |
2026-09-02 | 2-Bromobutane
78-76-2
|
$1.00-100.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
 |
2026-05-28 | 2-bromobutane
78-76-2
|
$10.00 | 1KG | 99.% | 10 ton | Hebei Chuanghai Biotechnology Co,.LTD |
-
- 2-Bromobutane
78-76-2
- $0.00
- ≥99%
- Yancheng Longshen Chemical Co.,Ltd.
-
- 2-Bromobutane
78-76-2
- $1.00-100.00
- 99%
- Henan Fengda Chemical Co., Ltd
-
- 2-bromobutane
78-76-2
- $10.00
- 99.%
- Hebei Chuanghai Biotechnology Co,.LTD
