Dienochlor

Dienochlor
Names
	IUPAC name 1,2,3,4,5-Pentachloro-5-(1,2,3,4,5-pentachlorocyclopenta-2,4-dien-1-yl)cyclopenta-1,3-diene
	Other names Decachlor, perchlorbis(cyclopenta-2,4-dien-1-yl), pentac
Identifiers
CAS Number	2227-17-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	15823;
ECHA InfoCard	100.017.058
PubChem CID	16686;
UNII	243Z2SVZ40 ;
CompTox Dashboard (EPA)	DTXSID9032371 ;
	InChI InChI=1S/C10Cl10/c11-1-2(12)6(16)9(19,5(1)15)10(20)7(17)3(13)4(14)8(10)18 Key: LWLJUMBEZJHXHV-UHFFFAOYSA-N;
	SMILES ClC1=C(Cl)C(Cl)(C2(Cl)C(Cl)=C(Cl)C(Cl)=C2Cl)C(Cl)=C1Cl;
Properties
Chemical formula	C10Cl10
Molar mass	474.61 g·mol−1
Appearance	Yellow crystalline solid
Density	1.923 g/cm3
Melting point	122–123 °C (252–253 °F; 395–396 K)
Boiling point	250 °C (482 °F; 523 K)
Solubility in water	Practically insoluble in water
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H319, H400
Precautionary statements	P264, P270, P273, P280, P301+P312, P305+P351+P338, P313, P330, P337, P391, P501
Flash point	187.8 °C (370.0 °F; 460.9 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Dienochlor is an organochlorine compound included in the group of cyclic chlorinated hydrocarbons. Its chemical formula is C
₁₀Cl
₁₀.^[1] Dienochlor is mostly used as a pesticide and ovicide.

Synthesis

Dienochlor can be obtained by catalytic reduction of hexachlorocyclopentadiene (e.g. with copper or hydrogen).^[2]

Properties

Dienochlor is a combustible yellow solid which is practically insoluble in water. It decomposes when heated above 250 °C. It decomposes rapidly under the influence of sunlight.

Applications

Dienochlor is used as an acaricide under the trade name Pentac for combating mites (Tetranychus, Polyphagotarsonemus latus) on roses, chrysanthemums, and other ornamental plants.^[3]

Regulations

Dienochlor was approved for use in the Western Germany between 1971 and 1990. In the European Union, no plant protection products containing dienochlor are authorized.^[4]

References

^ "Dienochlor". Retrieved 1 June 2017.
^ "Dienochlor PESTANAL®, analytical standard". Sigma Aldrich. sigmaaldrich.com.
^ "PENTAC". toxnet.nlm.nih.gov. Retrieved 1 June 2017.
^ "VERORDNUNG (EG) Nr. 2076/2002 DER KOMMISSION". eur-lex.europa.eu. Retrieved 1 June 2017.

[1] "Dienochlor". Retrieved 1 June 2017.

[2] "Dienochlor PESTANAL®, analytical standard". Sigma Aldrich. sigmaaldrich.com.

[3] "PENTAC". toxnet.nlm.nih.gov. Retrieved 1 June 2017.

[4] "VERORDNUNG (EG) Nr. 2076/2002 DER KOMMISSION". eur-lex.europa.eu. Retrieved 1 June 2017.

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