Skip to Content
Merck
CN

34440

α,α′-Dibromo-p-xylene

purum, ≥98.0% (GC)

Synonym(s):

1,4-Bis(bromomethyl)benzene, p-Xylylene dibromide

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
C6H4(CH2Br)2
CAS Number:
623-24-5
Molecular Weight:
263.96
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
329754742
EC Number:
210-781-1
Beilstein/REAXYS Number:
1100019
MDL number:
MFCD00000182

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

α,α′-Dibromo-p-xylene, purum, ≥98.0% (GC)

InChI key

RBZMSGOBSOCYHR-UHFFFAOYSA-N

InChI

1S/C8H8Br2/c9-5-7-1-2-8(6-10)4-3-7/h1-4H,5-6H2

SMILES string

BrCc1ccc(CBr)cc1

grade

purum

assay

≥98.0% (GC)

form

crystals

bp

245 °C (lit.)

mp

143-145 °C (lit.)

solubility

dioxane: soluble 1 g/10 mL (hot)

functional group

bromo

Quality Level

100

Looking for similar products? Visit Product Comparison Guide

Application

α, α′-Dibromo-p-xylene may be used in the preparation of:
  • third-generation bis(1-pyrazolyl)methane ligands
  • 5,5′-[(p-phenyl­enedimethyl­ene)dithio]bis­(1-phen­yl-1H-1,2,3,4-tetra­zole)
  • new bis 1,10-phenanthroline ligand (composed of two subunits of 7-(p-anisyl)-1,10-phenanthroline (phen) joined by p-(CH2)2C6H4(CH2)2 space groups at 4 positions), via Skraup synthesis
  • stereoisomers of α,α′-bis[3-(N,N-diethylcarbamoyl)-piperidino]-p-xylene

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCN5985
BCCM1341
BCCH3288
BCCD2850
BCCC1613

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

Jai Young Lee et al.
Acta crystallographica. Section E, Structure reports online, 65(Pt 10), o2369-o2370 (2009-01-01)
The title 22-crown-6 unit, C(26)H(28)O(6), comprising of three benzo groups and triethyl-ene glycol, was prepared by the reaction of α,α'-dibromo-p-xylene with 1,8-bis-(2-hydroxy-phen-oxy)-3,6-dioxaoctane in the presence of Cs(2)CO(3) with tetra-hydro-furan (THF) and recrystallized from dichloro-methane-hexane (1:20 v/v) at room temperature. In
5, 5'-[(p-Phenylenedimethylene) dithio] bis (1-phenyl-1H-1, 2, 3, 4-tetrazole).
Wang W, et al.
Acta Crystallographica Section E, Structure Reports Online, 61(4), 1163-1164 (2005)
D Pomeranc et al.
Journal of the American Chemical Society, 123(49), 12215-12221 (2001-12-06)
A bis-chelating ligand (L1), made of two 7-(p-anisyl)-1,10-phenanthroline (phen) subunits connected with a p-(CH(2))(2)C(6)H(4)(CH(2))(2) spacer through their 4 positions, has been prepared, using Skraup syntheses and reaction of the anion of 4-methyl-7-anisyl-1,10-phenanthroline with alpha,alpha'-dibromo-p-xylene. Its Fe(II) complex, [FeL1(dmbp)](PF(6))(2), was prepared
Daniel L Reger et al.
Inorganic chemistry, 48(3), 936-945 (2009-01-06)
The third-generation bis(1-pyrazolyl)methane ligands p-C(6)H(4)[CH(2)OCH(2)CH(pz)(2)](2) (L(p), pz = pyrazolyl ring) and m-C(6)H(4)[CH(2)OCH(2)CH(pz)(2)](2) (L(m)) have been synthesized by the reaction of (pz)(2)CHCH(2)OH with NaH followed by alpha,alpha'-dibromo-p-xylene or alpha,alpha'-dibromo-m-xylene. The reaction of L(p) with AgBF(4), AgPF(6), and AgO(3)SCF(3) yields the new
X Zheng et al.
Chirality, 7(2), 90-95 (1995-01-01)
The stereoisomers of alpha,alpha'-bis[3-(N,N-diethylcarbamoyl)-piperidino]-p-xylene (1) were synthesized. Rac ethyl nipecotate was resolved by diastereomeric (-)-D- and (+)-L-tartrate salt formation. The enantiomeric esters were hydrolyzed to the corresponding nipecotic acids, which were then converted into t-BOC derivatives. Treatment of the latter

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