Skip to Content
Merck
CN

157783

Phosphorus tribromide

97%

Synonym(s):

Phosphorus(III) bromide

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
PBr3
CAS Number:
7789-60-8
Molecular Weight:
270.69
NACRES:
NA.22
PubChem Substance ID:
24849701
UNSPSC Code:
12352101
EC Number:
232-178-2
MDL number:
MFCD00011436

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Phosphorus tribromide, 97%

InChI key

IPNPIHIZVLFAFP-UHFFFAOYSA-N

InChI

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

SMILES string

BrP(Br)Br

vapor pressure

0.27 psi ( 54 °C)

assay

97%

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.)

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

General description

Phosphorus tribromide (PBr3) is commonly used in Hell-Volhard-Zelinsky halogenation for the a-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.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H314,H335

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

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Regulatory Information

新产品
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCX1798
MKCT0951
MKCQ4121
MKCN1481
MKCM8982

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

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

Visit the Document Library

Organic Chemistry, 1 (1988)
Phosphorus tribromide promoted allylic rearrangement of a tertiary vinyl carbinol. Stereochemistry of the reaction product and application to the synthesis of JH-25, a potent juvenile hormone mimic.
Babler JH
The Journal of Organic Chemistry, 41(7), 1262-1264 (1976)
Organic Chemistry (2008)
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)
Andrey S Mereshchenko et al.
Nature chemistry, 7(7), 562-568 (2015-06-24)
'Roaming' is a new and unusual class of reaction mechanism that has recently been discovered in unimolecular dissociation reactions of isolated molecules in the gas phase. It is characterized by frustrated bond cleavage, after which the two incipient fragments 'roam'

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