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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:
612-12-4
Molecular Weight:
175.06
Beilstein:
2043675
EC Number:
210-291-8
MDL number:
MFCD00000903
UNSPSC Code:
12352100
PubChem Substance ID:
24847586
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
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H302,H315,H319,H335,H410

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

Certificates of Analysis (COA)

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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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