View source for Chemistry:Methyl thiocyanate

{{Chembox
| Name =
| ImageFile =Methyl thiocyanate.svg
| ImageSize = 160
| ImageFile1 = Methyl thiocyanate 3D spacefill.png
| ImageSize1 = 160
| PIN = Methyl thiocyanate
| OtherNames = Thiocyanic acid methyl ester;<ref name="blink">{{cite web|url=http://www.chemblink.com/products/556-64-9.htm|title=Chemblink chemical data|accessdate=June 29, 2011}}</ref> Methylrhodanid; methylrhodanate; Methylthiokyanat; Thiocyanomethane; Methyl rhodanide; Methyl thiocyanate; thiocyanato-methan; methylsulfocyanate; Methylsalfocyanate<ref name="book">{{cite web|url=http://www.chemicalbook.com/ChemicalProductProperty_EN_CB8853822.htm|title=Chemical book page|accessdate=June 29, 2011}}</ref>
|Section1={{Chembox Identifiers
| Abbreviations =
| CASNo = 556-64-9
| CASNo_Ref = {{cascite|correct|CAS}}
| ChEBI = 61112
| ChemSpiderID = 10695
| EINECS = 209-134-6
| PubChem = 11168
| MeSHName = C047435
| UNNumber = 2929 1935
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 55I23VY6IE
| SMILES = N#CSC
| StdInChI=1S/C2H3NS/c1-4-2-3/h1H3
| StdInChIKey = VYHVQEYOFIYNJP-UHFFFAOYSA-N
 }}
|Section2={{Chembox Properties
| Formula = C<sub>2</sub>H<sub>3</sub>NS
| MolarMass = 73.117
| Appearance = Colourless liquid
| Density = 1.074 g/cm<sup>3</sup>
| MeltingPtC = −51
| MeltingPt_notes =
| BoilingPtC = 132
| BoilingPt_notes = (101.3 kP)
| Solubility = Slightly soluble<ref name="US gov" />
| SolubleOther = Miscible<ref name="US gov">{{cite web|url=http://www.osha.gov/dts/chemicalsampling/data/CH_254775.html|title=United States chemical entree|accessdate=June 29, 2011}}</ref>
| Solvent = [[Chemistry:Diethyl ether|Diethyl ether]]
| LogP =
| VaporPressure =
| HenryConstant =
| AtmosphericOHRateConstant =
| pKa =
| pKb =
  }}
|Section3={{Chembox Structure
| CrystalStruct =
| Coordination =
| MolShape = bent C-S-CN
  }}
|Section4={{Chembox Thermochemistry
| DeltaHf =
| DeltaHc =
| Entropy =
| HeatCapacity =
  }}
|Section7={{Chembox Hazards
| ExternalSDS =
| MainHazards =
| NFPA-H = 3
| NFPA-F = 3
| NFPA-R = 0
| NFPA-S =
| GHSPictograms = {{GHS02}}{{GHS06}}{{GHS07}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|226|301|311|315|319|330|331|335}}
| PPhrases = {{P-phrases|210|233|240|241|242|243|260|261|264|270|271|280|284|301+310|302+352|303+361+353|304+340|305+351+338|310|311|312|320|321|322|330|332+313|337+313|361|362|363|370+378|403+233|403+235|405|501}}
| FlashPtC = 38
| FlashPt_ref = <ref name="blink" />
| AutoignitionPt = 
| ExploLimits =
| LD50 =
| PEL =
  }}
|Section8={{Chembox Related
| OtherAnions =
| OtherCations =
| OtherFunction =
| OtherFunction_label =
| OtherCompounds =[[Chemistry:Methyl isocyanate|Methyl isocyanate]]<br />[[Chemistry:Methyl isothiocyanate|Methyl isothiocyanate]]
  }}
}}
'''Methyl thiocyanate''' is an [[Chemistry:Organic compound|organic compound]] with the formula CH<sub>3</sub>SCN.  The simplest member of the [[Chemistry:Organic thiocyanates|organic thiocyanates]], it is a colourless liquid with an onion-like odor.  It is produced by the [[Biology:Methylation|methylation]] of thiocyanate salts.  The compound is a precursor to the more useful isomer [[Chemistry:Methyl isothiocyanate|methyl isothiocyanate]] (CH<sub>3</sub>NCS).<ref name=Ullmann>F. Romanowski, H. Klenk "Thiocyanates and Isothiocyanates, Organic" in Ullmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH: Weinheim. {{doi|10.1002/14356007.a26_749}}</ref>

==Safety==
The LD50 is 60&nbsp;mg/kg (rats, oral).

It is listed as an [[Chemistry:List of extremely hazardous substances|extremely hazardous substance]] by the {{wipe|United States}}'s Emergency Planning and Community Right-to-Know Act.<ref name="list">{{citation | publisher = Government Printing Office | title = 40 C.F.R.: Appendix A to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities | url = http://edocket.access.gpo.gov/cfr_2008/julqtr/pdf/40cfr355AppA.pdf | edition = July 1, 2008 | accessdate = March 8, 2009 | archive-url = https://web.archive.org/web/20120225051612/http://edocket.access.gpo.gov/cfr_2008/julqtr/pdf/40cfr355AppA.pdf | archive-date = February 25, 2012 | url-status = dead }}</ref>

== References ==
{{reflist}}
{{sulfur compounds}}

[[Category:Thiocyanates]]
[[Category:Methyl esters]]
[[Category:Foul-smelling chemicals]]

{{Sourceattribution|Methyl thiocyanate}}