3-Bromopentane
Synonym(s):3-Pentyl bromide
- CAS NO.:1809-10-5
- Empirical Formula: C5H11Br
- Molecular Weight: 151.04
- MDL number: MFCD00000158
- EINECS: 217-314-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:13:03
What is 3-Bromopentane?
Chemical properties
Clear pale yellow liquid
The Uses of 3-Bromopentane
3-Bromopentane is a glass forming liquid used in the preparation of 2-(1-ethyl-propoxy)-isoindole-1,3-dione. Further, it is employed in organic synthesis.
Preparation
Isomerically pure 3-bromopentane could be prepared from tri-1-ethylpropyl phosphite and hydrogen bromide and solvolysed in 60% aqueous ethanol. The detection of about 1% rearrangement products in both acid and weakly alkaline conditions supports the view that carbonium ion intermediates are formed in the reaction of at least a proportion of the molecules[1].
General Description
3-Bromopentane is a glass forming liquid. The dielectric relaxation of 3-bromopentane was studied.
References
[1] H. R. Hudson, D. Ragoonanan. “Rearrangement in the solvolysis of 3-bromopentane in 60% aqueous ethanol.” Journal of The Chemical Society B: Physical Organic 10 1 (1970): 1755–1758.
Properties of 3-Bromopentane
| Melting point: | -126.2°C |
| Boiling point: | 118-119 °C (lit.) |
| Density | 1.216 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 65 °F |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Miscible with ethanol, ether, benzene and chloroform. |
| form | Liquid |
| color | Clear pale yellow |
| BRN | 1730967 |
| Dielectric constant | 8.3699999999999992 |
| InChI | InChI=1S/C5H11Br/c1-3-5(6)4-2/h5H,3-4H2,1-2H3 |
| CAS DataBase Reference | 1809-10-5(CAS DataBase Reference) |
| EPA Substance Registry System | Pentane, 3-bromo- (1809-10-5) |
Safety information for 3-Bromopentane
| Signal word | Danger |
| Pictogram(s) |
![]() Flame Flammables GHS02 ![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H225:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 3-Bromopentane
| InChIKey | VTOQFOCYBTVOJZ-UHFFFAOYSA-N |
| SMILES | CCC(Br)CC |
New Products
Paroxetine Impurity G/Paroxetine Related Compound E 1-Aminocyclopentane carbonitrile (RS)-beta-Amino-beta-(4-bromophenyl)propionic acid N,N CARBONYL DIIMIDAZOLE 2-Amino-5-bromo-4-(trifluoromethyl)pyridine(RM for Indian lab) Benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethylpyrrolidine-1-carboxylate (R)-1-Benzyl-3-pyrrolidinecarbonitrile Betahistine EP Impurity C Cyclobenzaprine N-oxide/Citalopram Related Compound E Chlorthalidone Impurity I Carbamazepine EP Impurity G Sumatriptan Succinate USP Related Compound C 2,2'-(5-methyl-1,3-phenylene)-di(2-Methylpropionitrile) 4-Fluorothiophenol 1-methyl amino-2,4-dinitro benzene 5-Methyl-1,3-benzenediacetonitrile (R)-BoroLeu-(+)-Pinanediol-CF3COOH 4-(5-amino-1-methyl-1h-benzoimidazol-2-yl)-butyric acid isopropyl ester. 4-Bromo Benzylcyanide 3-Hydroxypropionitrile valeronitrile 3,4 Dimethoxy Benzylcyanide 3-chlorobenzyl cyanide 2-Chloro BenzylcyanideRelated products of tetrahydrofuran








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