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33979-03-2 Usage


2,2'',4,4'',6,6''-Hexachlorobiphenyl is a polychlorinated biphenyl (PCB) congeners.


ChEBI: A hexachlorobiphenyl that is biphenyl in which both of the phenyl rings are substituted at positons 2, 4, and 6 by chlorines.


A poison.

Check Digit Verification of cas no

The CAS Registry Mumber 33979-03-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,9,7 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 33979-03:
142 % 10 = 2
So 33979-03-2 is a valid CAS Registry Number.



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017


1.1 GHS Product identifier

Product name 2,2',4,4',6,6'-hexachlorobiphenyl

1.2 Other means of identification

Product number -
Other names 1,1'-Biphenyl,2,2',4,4',6,6'-hexachloro

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:33979-03-2 SDS

33979-03-2Relevant articles and documents

A Suzuki-type cross-coupling reaction of arylacetylene halides with arylboronic acids

Shi, Yu,Li, Xiaoyu,Liu, Jianhui,Jiang, Wenfeng,Sun, Licheng

experimental part, p. 514 - 520 (2012/04/04)

A PdCl2-catalyzed direct alkynylation of arylboronic acids to give diarylacetylenes is described. The optimal conditions using PdCl 2 as catalyst, MeOH-PhMe-H2O as solvent and K 2CO3 as base effectively suppressed the formation of homo-coupling product and afforded moderate to good yield of the desired unsymmetrical coupling product. This reaction represents a Suzuki-type sp 2(C-B)-sp(C-X) cross-coupling. Copyright

Physical, spectral and chromatographic properties of all 209 individual PCB congeners

Bolgar,et al.

, p. 2687 - 2705 (2007/10/03)

Through the use of two capillary GC columns: 40% octadecyl/ 15% phenyl methyl siloxane and 50% phenyl methyl siloxane, it was possible to separate 201 PCB congeners with only four unresolved pairs. The data compiled in this study for all 209 congeners will aid in the identification of selected individual components of these environmental pollutants. The use of this data also presents the opportunity for the improved quantification of the commercial PCB formulations. -from Authors

New Azoolefines and their Acidic Cleavage to Aryldiimines

Kirschke, Klaus,Moeller, Angela,Schmitz, Ernst

, p. 893 - 898 (2007/10/02)

3-Amino-1-aryl-3',3'-dimethyl-pyrazolin-4-spiro-2'-oxiran-5-ones (3a-c) undergo ring opening with methoxide forming methyl 3-amino-3-arylazo-propenoates (5a-c). 5a-c are cleaved under acidic conditions.The main products of the cleavage of 5c with methanolic hydrochloric acid are nitrogen, 2,4,6-trichloro-benzene (6), 2,4,6-trichloro-aniline (9) and 2,4,6-trichloro-phenylhydrazine (10).Intermediates of the cleavage of 5 are aryldiimines trapped with benzaldehyde as the corresponding benzhydrazides (12a,b).

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