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Sigma-Aldrich

Methyl isothiocyanate

97%

Synonym(s):

Isothiocyanatomethane, Isothiocyanic acid methyl ester

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About This Item

Linear Formula:
CH3NCS
CAS Number:
556-61-6
Molecular Weight:
73.12
Beilstein/REAXYS Number:
605319
EC Number:
209-132-5
MDL number:
MFCD00004818
UNSPSC Code:
12352100
PubChem Substance ID:
24847115
NACRES:
NA.22

vapor pressure

21 mmHg ( 20 °C)

Quality Level

200

assay

97%

bp

117-118 °C (lit.)

mp

30-34 °C (lit.)

solubility

H2O: slightly soluble

density

1.069 g/cm3 at 25 °C (lit.)

SMILES string

CN=C=S

InChI

1S/C2H3NS/c1-3-2-4/h1H3

InChI key

LGDSHSYDSCRFAB-UHFFFAOYSA-N

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General description

Methyl isothiocyanate (MITC) is a common soil fumigant byproduct that is toxic and corrosive, skin and respiratory irritant. It can be degraded and removed from contaminated waters by free radical reactions†.

Methyl isothiocyanate is an active chemical used as an anti-fermentative agent in wine and as an effective insecticide.

Application

Methyl isothiocyanate can be used:
  • For amino acid sequence analysis
  • To study the effect of pesticide Metam (methyl isothiocyanate is its active ingredient) in the streamside microbial communities

signalword

Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

86.0 °F - closed cup

flash_point_c

30 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sigma-Aldrich

66181

N-Succinimidyl N-methylcarbamate

Ethyl isocyanate 98%

Sigma-Aldrich

E33300

Ethyl isocyanate

Bio-inspired ultrasensitive colorimetric detection of methyl isothiocyanate on nylon-6 nanofibrous membrane: A comparison of biological thiol reactivities
Peixin T et al.
Journal of Hazardous Materials, 362, 375-382 (2019)
Microbial ecology, toxicology and chemical fate of methyl isothiocyanate in riparian soils from the upper Sacramento river.
Environmental Toxicology and Chemistry / Setac, 15(10), 1694-1701 (1996)
William S Cain et al.
Regulatory toxicology and pharmacology : RTP, 58(2), 173-180 (2010-07-17)
An unpublished laboratory study by Russell and Rush (1996) showed that human subjects sense the presence of methyl isothiocyanate (MITC) via the eyes at concentrations as low as hundreds of ppb in air, with dependence upon duration of exposure. The
YongLin Ren et al.
Pest management science, 68(2), 194-201 (2011-07-23)
Methyl bromide is being phased out for use on stored commodities, as it is listed as an ozone-depleting substance, and phosphine is the fumigant widely used on grains. However, phosphine resistance occurs worldwide, and phosphine fumigation requires a long exposure
Yonglin Ren et al.
Journal of economic entomology, 101(2), 623-630 (2008-05-08)
Australian Standard White wheat, Triticum aestivum L. (a marketing grade with mixed grain hardness),with a moisture content of 12.5% was fumigated with a new ethyl formate formulation (95% ethyl formate plus 5% methyl isothiocyanate) identified and developed by Commonwealth Scientific
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