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123889

Sigma-Aldrich

α,α′-Dichloro-o-xylene

98%

Synonym(s):

1,2-Bis(chloromethyl)benzene, o-Xylylene dichloride

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About This Item

Linear Formula:
C6H4(CH2Cl)2
CAS Number:
Molecular Weight:
175.06
Beilstein:
2043675
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

98%

form

solid

bp

239-241 °C (lit.)

mp

51-55 °C (lit.)

SMILES string

ClCc1ccccc1CCl

InChI

1S/C8H8Cl2/c9-5-7-3-1-2-4-8(7)6-10/h1-4H,5-6H2

InChI key

FMGGHNGKHRCJLL-UHFFFAOYSA-N

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General description

α,α′-Dichloro-o-xylene reacts with elemental tellurium and NaI in 2-methoxyethanol to form 1,1-diiodo-3,4-benzo-1-telluracyclopentane.

Application

α,α′−Dichloro-o-xylene was used in solid-phase synthesis of large combinatorial variations of fundamental peptide unit.

Pictograms

Exclamation markEnvironment

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

257.0 °F - closed cup

Flash Point(C)

125 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

123889-100G:
123889-VAR:
123889-BULK:
123889-25G:


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’.

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The synthesis and characterization of α-and β-1, 1-diiodo-3, 4-benzo-1-telluracyclopentane, C8 H8Tel2.
Ziolo RF and Gunther WHH.
Journal of Organometallic Chemistry, 146(3), 245-251 (1978)
William L Scott et al.
Molecules (Basel, Switzerland), 15(7), 4961-4983 (2010-07-27)
Amino acids are Nature's combinatorial building blocks. When substituted on both the amino and carboxyl sides they become the basic scaffold present in all peptides and proteins. We report a solid-phase synthetic route to large combinatorial variations of this fundamental

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