Skip to Content
MilliporeSigma
All Photos(1)

Documents

256536

Sigma-Aldrich

Phosphorus tribromide

99%

Synonym(s):

Phosphorus(III) bromide

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
PBr3
CAS Number:
7789-60-8
Molecular Weight:
270.69
EC Number:
232-178-2
MDL number:
MFCD00011436
UNSPSC Code:
12352101
PubChem Substance ID:
24855534
NACRES:
NA.22

vapor pressure

0.27 psi ( 54 °C)

Quality Level

200

assay

99%

form

liquid

refractive index

n20/D 1.697 (lit.)

bp

175 °C (lit.)

mp

−41.5 °C (lit.)

density

2.88 g/mL at 20 °C (lit.)

SMILES string

BrP(Br)Br

InChI

1S/Br3P/c1-4(2)3

InChI key

IPNPIHIZVLFAFP-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Phosphorus tribromide (PBr3) is commonly used in Hell-Volhard-Zelinsky halogenation for the α-bromination of carboxylic acids to form the corresponding acyl bromide. It is also useful for the conversion of primary and secondary alcohols to alkyl bromides.

Application

Phosphorus tribromide may be used as a reagent:
  • In a novel protocol for synthesizing 7-ethoxy-1-(p-ethylphenoxy)-3,7-dimethyl-2-octene, a synthetic juvenile hormone mimic of trans,trans,cis-10,11-epoxy-7-ethyl-3,11-dimethyltrideca-2,6-dienoate.
  • To synthesize 1,2,3-diazaphosphinane, 1,2,3-thiazaphosphinine and 1,2-azaphosphole bearing a chromone ring.
  • To synthesize 1-Bromoundec-1-ene from 10-undecen-1-ol.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

target_organs

Respiratory system

supp_hazards

EUH014

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 8

1 of 8

9-Decen-1-ol technical grade, 90%

Sigma-Aldrich

316652

9-Decen-1-ol

Phosphorus triiodide 99%

Sigma-Aldrich

241555

Phosphorus triiodide

Phosphorus trichloride ReagentPlus®, 99%

Sigma-Aldrich

157791

Phosphorus trichloride

Tetrabromomethane ReagentPlus®, 99%

Sigma-Aldrich

C11081

Tetrabromomethane

Boron tribromide ≥99.99%

Sigma-Aldrich

230367

Boron tribromide

10-Bromo-1-decene 97%

Sigma-Aldrich

560855

10-Bromo-1-decene

Diphenylphosphine oxide 97%

Sigma-Aldrich

287881

Diphenylphosphine oxide

Ethylene 99.99%

Sigma-Aldrich

536164

Ethylene

Organic Chemistry (2008)
Polymerized micelle-protected platinum clusters. Preparation and application to catalyst for visible light-induced hydrogen generation.
Toshima N, et al.
J. Macromol. Sci. Chem., 25(5-7), 669-686 (1988)
Organic Chemistry, 905-905 null
Organic Chemistry (1988)
Reaction of 2-cyano-3-(4-oxo-4H-chromen-3-yl) prop-2-enamide with some phosphorus reagents: synthesis of some novel diethyl phosphonates, 1, 2, 3-diazaphosphinanes, 1, 2, 3-thiazaphosphinine and 1, 2-azaphospholes bearing a chromone ring.
Ali TE & Hassan MM
Research on Chemical Intermediates, 44(1), 173-189 (2018)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service