Home Categories Chemical Reagents Methyl Thiocyanate
A5636912

Methyl Thiocyanate , 98% , 556-64-9

Synonym(s):
Thiocyanic acid methyl ester

CAS NO.:556-64-9

Empirical Formula: C2H3NS

Molecular Weight: 73.12

MDL number: MFCD00001830

EINECS: 209-134-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: -5 °C
Boiling point: 131 °C
Density  1.08
refractive index  1.467-1.469
Flash point: 38 °C
storage temp.  Poison room
Water Solubility  Practically insoluble in water
solubility  Chloroform (Soluble), Methanol (Slightly)
form  Liquid
color  Clear colorless to light yellow
Odor at 0.01?%?in?propylene glycol. sulfury onion
Sensitive  Moisture Sensitive
Merck  14,6127
Dielectric constant 4.3(19℃)
LogP 0.502 (est)
CAS DataBase Reference 556-64-9(CAS DataBase Reference)
NIST Chemistry Reference Thiocyanic acid, methyl ester(556-64-9)
EPA Substance Registry System Methyl thiocyanate (556-64-9)

Description and Uses

Methyl thiocyanate is a colorless liquid withan onion-like odor. Molecular weight = 73.12; Boilingpoint= 130-133℃; Freezing/Melting point= - 51℃.Very slightly soluble in water.

Methyl thiocyanate is a reagent that is used in the synthesis of WAK 4103 (W498200), which is a metabolite of Imidacloprid (I274990), a neonicotinoid; the active ingredient in certain neuro-active insecticides. Reports show that when exposed to neonicotinid pesticides honeybees have probelms returnign home after foraging and bumblebee colonies grow poorly and produce fewer queens.Nauen, R., et. al.: Pestic. Sci., 55, 265 (1999); Chauzat, M., et al.: Env. Entomol., 38, 514 (2009); Patial, A., et al.: Env. Ecol., 27, 320 (2009); Fernandez-Bayo, J., et al.: J. Agric., Food Chem., 57, 5435 (2009); Tomizawa, M., et al.: J. Med. Chem., 52, 3735 (2009); Chem. and Eng. News 90: 10 (2012)

Safety

Symbol(GHS) 
GHS02,GHS06
Signal word  Danger
Hazard statements  H226-H301+H311+H331-H319-H335
Precautionary statements  P210-P280-P301+P310-P303+P361+P353-P304+P340+P311-P305+P351+P338
Hazard Codes  T
Risk Statements  23/24/25-10-36/37
Safety Statements  28A-27-26-16-45-36/37/39
RIDADR  UN1992
WGK Germany  3
RTECS  XL1575000
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29309099
Hazardous Substances Data 556-64-9(Hazardous Substances Data)
Toxicity LD50 i.p. in mice: 315 nmoles/g (Ohkawa)

RELATED PRODUCTS