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8.45043 EMD Millipore

Methanesulfonyl chloride

Methanesulfonyl chloride Msynth®plus. CAS 124-63-0, EC Number 204-706-1, chemical formula CH₃SO₂Cl., Msynth®plus

Synonym: Methanesulfonyl chloride, Mesyl chloride

  • CAS Number 124-63-0

  • Linear Formula CH₃ClO₂S

  • Molecular Weight 114.55 g/mol

  •  EC Number 204-706-1

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Properties

Related Categories Biochemicals and Reagents, Building Blocks, Chemical Synthesis, Organic Building Blocks, Sulfur Compounds More...
packaging   250 ml in Glass bottle (8450430250)
vapor pressure   2.79 hPa (20 °C)
density   1.478 g/cm3 (20 °C)
flash point   102 °C
autoignition temp.   435 °C
mp   -32 °C
LD 50 oral   LD50 Rat 205 - 317 mg/kg
LD 50 dermal   LD50 Rabbit 200 - 2000 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Colour (visual): colourless
  Appearance of substance (visual): clear
  Assay (GC, area%): ≥ 99.0 % (a/a)
  Density (d 20 °C/ 4 °C): 1.473 - 1.476
  Identity (IR): passes test

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Safety Information

HS Code 
2904 99 00
Hazard Statement(s) 
H301: Toxic if swallowed.
H312: Harmful in contact with skin.
H314: Causes severe skin burns and eye damage.
H330: Fatal if inhaled.
H335: May cause respiratory irritation.
Precautionary Statement(s) 
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
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.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
RTECS 
PB2790000
Storage class 
6.1A Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK 
WGK 2 water endangering
Disposal 
11
Organic acid halides, anhydrides and isocyanates can be added dropwise to an excess of methanol (Cat. No. 822283) to convert them into the corresponding methyl esters or methyl carbamates. If necessary, neutralize with sodium hydroxide solution (Cat. No. 105587). Fill into container A.
Hazard Pictogram(s) 
GHS05  GHS05
Hazard Pictogram(s) 
GHS06  GHS06
Hazard Symbols 
Very toxic  Very toxic
Declaration (railroad and road) ADR, RID 
UN 3246 , 6.1 (8), I
Declaration (transport by air) IATA-DGR 
UN 3246 , 6.1 (8),
Declaration (transport by sea) IMDG-Code 
UN 3246 , 6.1 (8), I, Segregation Group: 1 (Acids)
Categories of danger 
very toxic, corrosive, dangerous for the environment
R Phrase 
R 21/22-26-34-37
Harmful in contact with skin and if swallowed.Very toxic by inhalation.Causes burns.Irritating to respiratory system.
S Phrase 
S 26-28-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.After contact with skin, wash immediately with plenty of water.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
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