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LC4125 Methyl thiocyanate

for synthesis


Order number Packaging Quantity Price €
AC31125 Glass bottle 50 ml 15.48


Product information
Synonyms Thiocyanic acid methyl ester
Hill Formula C2H3NS
Chemical formula CH3SCN
HS Code 2930 90 99
EC number 209-134-6
Molar mass 73.12 g/mol
Storage Store below +15°C.
CAS number 556-64-9


Chemical and physical data
Solubility (20 °C) practically insoluble
Melting point -5 °C
Molar mass 73.12 g/mol
Density 1.07 g/cm3 (20 °C)
Boiling point 131 °C
Vapor pressure 16.1 hPa (25 °C)
Flash point 38 °C
Refractive index 1.4745 (15 °C, 589 nm)


Safety information
R Phrase R 10-25-36/38
Flammable.Toxic if swallowed.Irritating to eyes and skin.
S Phrase S 23-26-37-45
Do not breathe vapour.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable gloves.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger flammable, toxic, irritant
Hazard Symbol
Storage class 3 Flammable Liquids
WGK WGK 3 highly water endangering
Disposal 9
Carcinogenic compounds and flammable compounds labelled “Highly toxic” or “Toxic”: container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).


Transport information
Declaration (transport by sea) IMDG-Code UN 3080 ISOCYANATES, TOXIC, FLAMMABLE, N.O.S.(METHYLTHIOCYANATE), 6.1 (3), II
Declaration (transport by air) IATA-DGR UN 3080 ISOCYANATES, TOXIC, FLAMMABLE, N.O.S.(METHYLTHIOCYANATE), 6.1 (3), II


Toxicological data
LD 50 oral LD50 rat 60 mg/kg


Assay (GC, area%) ≥ 96 %
Density (d 20 °C/ 4 °C) 1.072 – 1.074
Identity (IR) passes test


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