Skip to Content
Merck
All Photos(1)

Key Documents

256536

Sigma-Aldrich

Phosphorus tribromide

99%

Synonym(s):

Phosphorus(III) bromide

Sign Into View Organizational & Contract Pricing

Select a Size

5 G
€51.90
100 G
€141.00
500 G
€310.00

€51.90


Please contact Customer Service for Availability

Request a Bulk Order

Select a Size

Change View
5 G
€51.90
100 G
€141.00
500 G
€310.00

About This Item

Linear Formula:
PBr3
CAS Number:
Molecular Weight:
270.69
EC Number:
MDL number:
UNSPSC Code:
12352101
PubChem Substance ID:
NACRES:
NA.22
form:
liquid
Assay:
99%

€51.90


Please contact Customer Service for Availability

Request a Bulk Order

vapor pressure

0.27 psi ( 54 °C)

Quality Level

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

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.[1]

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.[2]
  • To synthesize 1,2,3-diazaphosphinane, 1,2,3-thiazaphosphinine and 1,2-azaphosphole bearing a chromone ring.[3]
  • To synthesize 1-Bromoundec-1-ene from 10-undecen-1-ol.[4]

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Supplementary Hazards

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

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.

Already Own This Product?

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

Visit the Document Library

Organic Chemistry (1988)
Organic Chemistry, 905-905 null
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)
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)

Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

Reviews

No rating value

Active Filters

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