Thiram

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Thiram
Structural formula of thiram
Ball-and-stick model of the thiram molecule
Names
IUPAC name
dimethylcarbamothioylsulfanyl N,N-dimethylcarbamodithioate
Identifiers
137-26-8 YesY
ChEBI CHEBI:9495 N
ChemSpider 5256 N
Jmol 3D model Interactive image
KEGG D06114 YesY
PubChem 5455
UNII 0D771IS0FH YesY
  • InChI=1S/C6H12N2S4/c1-7(2)5(9)11-12-6(10)8(3)4/h1-4H3 N
    Key: KUAZQDVKQLNFPE-UHFFFAOYSA-N N
  • InChI=1/C6H12N2S4/c1-7(2)5(9)11-12-6(10)8(3)4/h1-4H3
    Key: KUAZQDVKQLNFPE-UHFFFAOYAK
  • CN(C)C(=S)SSC(=S)N(C)C
Properties
C6H12N2S4
Molar mass 240.42 g·mol−1
Appearance White to yellow crystalline powder
Odor characteristic[1]
Density 1.29 g/cm3[1]
Melting point 155 to 156 °C (311 to 313 °F; 428 to 429 K)
Boiling point decomposes[1]
30 mg/L
Vapor pressure 0.000008 mmHg (20 °C)[1]
Pharmacology
ATC code P03AA05
Vapor pressure {{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
Infobox references

Thiram is a fungicide, ectoparasiticide, and animal repellent. It is used to prevent fungal diseases in seed and crops. It is also used as an animal repellent to protect fruit trees and ornamentals from damage by rabbits, rodents and deer. It is effective against Stem gall of coriander, damping off, smut of millet, neck rot of onion, etc. Thiram has been used in the treatment of human scabies, as a sun screen and as a bactericide applied directly to the skin or incorporated into soap.[2]

Usage

File:Thiram USA 2012.png
Map of agricultural use in the U.S. (2012)

Thiram was traditionally used in apple and wine farming. Since 2010 most Thiram is applied to soybeans.

Chemical properties

Thiram is a type of sulfur fungicide. It has been found to dissolve completely in chloroform, acetone and ether. It is available as dust, flowable, wettable powder, water dispersible granules, and water suspension formulations and in mixtures with other fungicides.[2]

Thiram is nearly immobile in clay soils or in soils of high organic matter. It is not expected to contaminate groundwater because of its in-soil half life of 15 days and tendency to stick to soil particles.[3]

As a waste, Thiram carries an EPA U244 code.

Toxicity

Thiram is moderately toxic by ingestion, but it is highly toxic if inhaled. Acute exposure in humans may cause headaches, dizziness, fatigue, nausea, diarrhea and other gastrointestinal complaints.[4]

Chronic or repeated exposure may cause sensitive skin, and it may have effects on the thyroid or liver.[5]

References

  1. 1.0 1.1 1.2 1.3 Cite error: Invalid <ref> tag; no text was provided for refs named PGCH
  2. 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
  3. Lua error in package.lua at line 80: module 'strict' not found.
  4. Lua error in package.lua at line 80: module 'strict' not found.
  5. NIOSH - Thiram International Chemical Safety Card (ICSC July 22, 2015

External links

  • Thiram in the Pesticide Properties DataBase (PPDB)