simazine

Simazine
Names
	IUPAC name 6-Chloro-N,N'-diethyl-1,3,5-triazine-2,4-diamine
Identifiers
CAS Registry Number	122-34-9
ChEBI	CHEBI:27496
ChEMBL	ChEMBL1605837
ChemSpider	5027
	InChI InChI=1S/C7H12ClN5/c1-3-9-6-11-5(8)12-7(13-6)10-4-2/h3-4H2,1-2H3,(H2,9,10,11,12,13) ; Key: ODCWYMIRDDJXKW-UHFFFAOYSA-N ; InChI=1/C7H12ClN5/c1-3-9-6-11-5(8)12-7(13-6)10-4-2/h3-4H2,1-2H3,(H2,9,10,11,12,13); Key: ODCWYMIRDDJXKW-UHFFFAOYAN ;
Jmol-3D images	Image
KEGG	C11172
PubChem	5216
	SMILES Clc1nc(nc(n1)NCC)NCC ;
Properties
Molecular formula	C7H12ClN5
Molar mass	201.66 g·mol−1
Appearance	White crystalline powder
Density	1.3 g/cm3
Melting point	225–227 °C (437–441 °F; 498–500 K)
Solubility in water	5 mg/L
Solubility in other solvents	Soluble in methanol, chloroform, and diethyl ether; slightly soluble in pentane
log P	1.9600
Vapor pressure	0.000810 mPa at 20 °C
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

シマジン　

WordNet

a herbicide used to control weeds (especially among crops)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/06 16:40:17」(JST)

wiki en

[Wiki en表示]

Simazine is an herbicide of the triazine class. The compound is used to control broad-leaved weeds and annual grasses.

Preparation

Simazine may be prepared in the laboratory from cyanuric chloride crystals and a strong solution of ethyl amine (at least 50 percent by number in water). The reaction is highly exothermic and is therefore best carried out in an ice bath below 10 °C. It is also essential to carry out the synthesis in a fume hood since cyanuric chloride decomposes at high temperatures into hydrogen chloride and hydrogen cyanide, both of which are highly toxic by inhalation.

Properties and uses

Simazine is an off-white crystalline compound which is sparingly soluble in water. It is a member of the triazine-derivative herbicides, and was widely used as a residual nonselective herbicide, but is now banned in European Union states.^[1] Like atrazine, a related triazine herbicide, it acts by inhibiting photosynthesis. It remains active in the soil for 2-7 months after application.

References

^ EU directive 91/414/EEC

External links

Simazine, Pesticide Action Network
Simazine, Extoxnet PIP

English Journal

Determination of micro-organic contaminants in groundwater (Maribor, Slovenia).

Koroša A1, Auersperger P2, Mali N3.
The Science of the total environment.Sci Total Environ.2016 Nov 15;571:1419-31. doi: 10.1016/j.scitotenv.2016.06.103. Epub 2016 Jul 7.
Micro-organic (MO) contaminants in groundwater can have adverse effects on both the environment and on human health. They enter the natural environment as a result of various processes, their presence in groundwater is the result of current anthropogenic activity and pollution loads from the past. A
PMID 27395079

Influence of Three Citrus Herbicides on Potential Production of Sorghum bicolor 'Topper 76-6' as a Bioenergy Crop.

Wilson PC1, Gruber B2, Lin Y2, Kumar P2, Niebch D2, Wilson S3.
Bulletin of environmental contamination and toxicology.Bull Environ Contam Toxicol.2016 Nov;97(5):639-645. Epub 2016 Sep 29.
Planting bioenergy crops on land previously used for citrus production may offer an alternative source of revenue for growers looking for alternative-to-citrus crops. However, residual herbicides used in citrus production may adversely affect alternative crops. This study evaluated effects of three
PMID 27686087

Triennial changes in groundwater quality in aquifers used for public supply in California: utility as indicators of temporal trends.

Kent R1, Landon MK2.
Environmental monitoring and assessment.Environ Monit Assess.2016 Nov;188(11):610. Epub 2016 Oct 8.
From 2004 to 2011, the U.S. Geological Survey collected samples from 1686 wells across the State of California as part of the California State Water Resources Control Board's Groundwater Ambient Monitoring and Assessment (GAMA) Priority Basin Project (PBP). From 2007 to 2013, 224 of these wells were
PMID 27722818