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LC4127 Methyl thioglycolate

for synthesis


Order number Packaging Quantity Price €
AC31127 Glass bottle 250 ml 22.28
AC31127 Glass bottle 1 l 69.3


Product information
Synonyms Thioglycolic acid methyl ester, Mercaptoacetic acid methyl ester, Methyl mercaptoacetate
Hill Formula C3H6O2S
Chemical formula HSCH2COOCH3
HS Code 2930 90 99
EC number 219-121-7
Molar mass 106.14 g/mol
CAS number 2365-48-2


Chemical and physical data
Solubility 40 g/l (20 °C)
Melting point -3 °C
Molar mass 106.14 g/mol
Density 1.17 g/cm3 (20 °C)
Boiling point 146 – 149 °C (1013 hPa)
Flash point 56 °C
Refractive index 1.4657 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H226: Flammable liquid and vapour.
H301: Toxic if swallowed.
H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
Precautionary Statement(s) P280: Wear protective gloves.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)

Storage class 3 Flammable Liquids
WGK WGK 1 slightly water endangering
Disposal 6
Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.


Safety information
S Phrase R 25-36/37/38-43
Toxic if swallowed.Irritating to eyes, respiratory system and skin.May cause sensitization by skin contact.
Storage class S 24-26-37-45
Avoid contact with skin.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).
WGK toxic, irritant, sensitizing
Disposal Toxic


Transport information
Declaration (transport by sea) IMDG-Code UN 3071 MERCAPTANS, LIQUID, TOXIC, FLAMMABLE, N.O.S.(METHYLTHIOGLYCOLATE), 6.1 (3), II


Toxicological data
LD 50 oral LD50 rat 84 mg/kg


Assay (GC, area%) ≥ 98 %
Density (d 20 °C/ 4 °C) 1.162 – 1.165
Identity (IR) passes test


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