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α,α′-Dibromo-p-xylene

Name: α,α′-Dibromo-<I>p</I>-xylene
Brand: SIGMA

purum, ≥98.0% (GC)

Synonym(s):

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

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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

Assay:

≥98.0% (GC)

Form:

crystals

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Properties

grade

purum

Quality Segment

100

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

SMILES string

BrCc1ccc(CBr)cc1

InChI

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

InChI key

RBZMSGOBSOCYHR-UHFFFAOYSA-N

Description

Application

α, α′-Dibromo-p-xylene may be used in the preparation of:

third-generation bis(1-pyrazolyl)methane ligands[1]
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[2]
stereoisomers of α,α′-bis[3-(N,N-diethylcarbamoyl)-piperidino]-p-xylene[3]

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This Item	D44804	T5605	95755
Sigma-Aldrich 34440 α,α′-Dibromo-p-xylene	Sigma-Aldrich D44804 α,α′-Dibromo-p-xylene	Sigma-Aldrich T5605 α,α,α′,α′-Tetrabromo-o-xylene	Sigma-Aldrich 95755 m-Xylylene diisocyanate
assay ≥98.0% (GC)	assay 97%	assay 97%	assay ≥90% (GC)
solubility dioxane: soluble 1 g/10 mL (hot)	solubility -	solubility -	solubility -
Quality Level 100	Quality Level 100	Quality Level 100	Quality Level 100
form crystals	form crystals	form -	form liquid
bp 245 °C (lit.)	bp 245 °C (lit.)	bp -	bp 88-90 °C/0.02 mmHg (lit.)
mp 143-145 °C (lit.)	mp 143-145 °C (lit.)	mp 114-116 °C (lit.)	mp -

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pictograms

GHS07

signalword

Warning

hcodes

H315,H319,H335

pcodes

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

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

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2,9,16,19,22,25-Hexaoxatetra-cyclo-[24.4.0.2.0]dotriaconta-1(26),4,6,10(15),11,13,27,29,31-nona-ene.

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)

Octahedral Fe(II) and Ru(II) complexes based on a new bis 1,10-phenanthroline ligand that imposes a well defined axis.

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

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Global Trade Item Number

SKU	GTIN
34440-100G-F	04061832674773
34440-25G-F	04061832674780

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